07 Analogue to Digital Converter(ADC).2016
•
4 likes•627 views
This document provides an overview of analog to digital conversion (ADC). It discusses what ADC is and why it is needed to convert analog sensor signals to digital values that can be read by microcontrollers. It then describes the characteristics of ADCs like resolution, reference voltage, and conversion time. Finally, it discusses the ADC features and registers of the ATmega32 microcontroller and provides examples of using the ADC to measure voltage and temperature with exercises.
Report
Share
Report
Share
Download to read offline
Recommended
Analog to digital converter
An analog to digital converter (ADC) samples an analog input signal and converts it to a digital value. The document discusses the basic components and configuration of an ADC, including setting the input range and reference voltages, data format, clock source, and enabling the ADC. It also provides an example of using an ADC to control the flashing frequency of an LED based on the voltage from an analog sensor.
Analog to Digital Converters
An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.
The conversion involves quantization of the input, so it necessarily introduces a small amount of error. Instead of doing a single conversion, an ADC often performs the conversions ("samples" the input) periodically. The result is a sequence of digital values that have been converted from a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal.
ADC - Analog to Digital Conversion on AVR microcontroller Atmega16
Robo India in this PPT is explaining on the most crucial and important aspect of Embedded system, robotics, automation and physical computing.
Analog to digital conversion is required in almost every project of above mentioned domain. One advantage to use a AVR micro controller is that it has inbuilt ADC thus we donot need to use external system for ADC.
Here Robo India is teaching how to use ADC in AVR series microcontrollers.
We welcome your views and queries, we are found at-
website: http://roboindia.com
mail- info@roboindia.com
Amvdd Data Converter Fundamentals
This document discusses analog to digital conversion fundamentals. It defines analog and digital signals and introduces analog to digital converters (ADCs) which convert continuous analog signals to discrete digital values. It discusses important ADC characteristics like resolution, quantization error, differential and integral nonlinearity. Sample and hold circuits are explained along with errors like aperture uncertainty. Specifications of digital to analog converters (DACs) like output voltage, resolution and nonlinearity errors are also covered.
02 Interfacing High Power Devices.2016
This document discusses controlling high power devices using microcontrollers. It covers using transistors as switches to interface microcontroller outputs with higher voltage/current loads. Specific circuits are presented using Darlington transistors, optocouplers, and relays to control loads like motors and lamps. The document also describes an H-bridge circuit to control the direction of a DC motor using either relays or transistors. Integrated circuits like the L298N are introduced for easily implementing an H-bridge.
(D/A) and (A/D)conversion
Digital to Analog(D/A) conversion, Binary Weighted Resistor method, Analog to Digital conversion,Successive Approximation method
ADC Interfacing with pic Microcontrollert
This document discusses analog to digital conversion and interfacing an ADC with a PIC18 microcontroller. It describes the basics of A/D conversion including using transducers to convert non-electric quantities to voltages. It also discusses the characteristics of an ideal ADC and quantization error. The document provides an example of calculating digital codes from analog voltages for a 10-bit ADC. It then describes the registers and conversion process for the A/D converter module in PIC18 microcontrollers.
Lica 7th chapter slides
- Both analog data from the physical world and analog control signals must be converted to digital form to be processed by digital electronics. This involves converting signals from analog to digital and back again from digital to analog.
- There are two main approaches to digital to analog conversion: using a weighted summing amplifier or an R-2R ladder network. The R-2R network is better for higher bit conversions due to greater precision.
- There are three main types of analog to digital converters: digital ramp ADCs, successive approximation ADCs, and flash ADCs. Successive approximation ADCs are faster than digital ramp ADCs but slower than flash ADCs, which are the fastest but require the most circuitry.
Recommended
Analog to digital converter
An analog to digital converter (ADC) samples an analog input signal and converts it to a digital value. The document discusses the basic components and configuration of an ADC, including setting the input range and reference voltages, data format, clock source, and enabling the ADC. It also provides an example of using an ADC to control the flashing frequency of an LED based on the voltage from an analog sensor.
Analog to Digital Converters
An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts a continuous physical quantity (usually voltage) to a digital number that represents the quantity's amplitude.
The conversion involves quantization of the input, so it necessarily introduces a small amount of error. Instead of doing a single conversion, an ADC often performs the conversions ("samples" the input) periodically. The result is a sequence of digital values that have been converted from a continuous-time and continuous-amplitude analog signal to a discrete-time and discrete-amplitude digital signal.
ADC - Analog to Digital Conversion on AVR microcontroller Atmega16
Robo India in this PPT is explaining on the most crucial and important aspect of Embedded system, robotics, automation and physical computing.
Analog to digital conversion is required in almost every project of above mentioned domain. One advantage to use a AVR micro controller is that it has inbuilt ADC thus we donot need to use external system for ADC.
Here Robo India is teaching how to use ADC in AVR series microcontrollers.
We welcome your views and queries, we are found at-
website: http://roboindia.com
mail- info@roboindia.com
Amvdd Data Converter Fundamentals
This document discusses analog to digital conversion fundamentals. It defines analog and digital signals and introduces analog to digital converters (ADCs) which convert continuous analog signals to discrete digital values. It discusses important ADC characteristics like resolution, quantization error, differential and integral nonlinearity. Sample and hold circuits are explained along with errors like aperture uncertainty. Specifications of digital to analog converters (DACs) like output voltage, resolution and nonlinearity errors are also covered.
02 Interfacing High Power Devices.2016
This document discusses controlling high power devices using microcontrollers. It covers using transistors as switches to interface microcontroller outputs with higher voltage/current loads. Specific circuits are presented using Darlington transistors, optocouplers, and relays to control loads like motors and lamps. The document also describes an H-bridge circuit to control the direction of a DC motor using either relays or transistors. Integrated circuits like the L298N are introduced for easily implementing an H-bridge.
(D/A) and (A/D)conversion
Digital to Analog(D/A) conversion, Binary Weighted Resistor method, Analog to Digital conversion,Successive Approximation method
ADC Interfacing with pic Microcontrollert
This document discusses analog to digital conversion and interfacing an ADC with a PIC18 microcontroller. It describes the basics of A/D conversion including using transducers to convert non-electric quantities to voltages. It also discusses the characteristics of an ideal ADC and quantization error. The document provides an example of calculating digital codes from analog voltages for a 10-bit ADC. It then describes the registers and conversion process for the A/D converter module in PIC18 microcontrollers.
Lica 7th chapter slides
- Both analog data from the physical world and analog control signals must be converted to digital form to be processed by digital electronics. This involves converting signals from analog to digital and back again from digital to analog.
- There are two main approaches to digital to analog conversion: using a weighted summing amplifier or an R-2R ladder network. The R-2R network is better for higher bit conversions due to greater precision.
- There are three main types of analog to digital converters: digital ramp ADCs, successive approximation ADCs, and flash ADCs. Successive approximation ADCs are faster than digital ramp ADCs but slower than flash ADCs, which are the fastest but require the most circuitry.
Analog to digital converter
ADC stands for analog to digital converter,it is use to convert analog signal to digital.In Embedded system this is very important because various device give analog input but micro-controller is process only digital input.
Adc
The document discusses the analog-to-digital converter (A/D) module used in the PIC18F microcontroller. It contains a 10-bit A/D converter that can generate a digital output value between 0-1023 depending on the input voltage. It has 8 input channels that are shared with PORTA and PORTE pins. The document also outlines the steps to perform an A/D conversion which includes configuring the channels and reference voltage, selecting the input channel and clock, starting the conversion, and reading the output value.
Dac
This document discusses digital-to-analog converters (DACs). It defines a DAC as a circuit that produces an analog output proportional to a digital input and reference voltage. The document describes two main DAC types - multiplying DACs which use an external reference, and non-multiplying DACs which use an internal reference. It also covers DAC circuit types, principles of operation, specifications, errors, and applications of DACs.
M-TECH 4th SEM PRESENTATION
This document describes the design of a 4-bit R-2R ladder digital to analog converter (DAC) using a 90nm CMOS technology process. It first discusses the design of a two-stage CMOS operational amplifier that meets given specifications. The design parameters and SPICE simulation results of the op-amp are then presented. Next, the document explains the principles of an R-2R ladder DAC and provides the specifications for the 4-bit DAC. It shows the SPICE circuit diagram and simulated output waveforms of the DAC. Comparisons are made between the expected and simulated DAC output levels. The document concludes the DAC design is suitable for the 90nm process and future work could enhance the
Digital to analog convertor
The document describes the design of a 12-bit digital to analog converter (DAC). It includes a binary weighted resistor ladder circuit to convert the digital input to an analog voltage, and an operational amplifier circuit to drive the output load. Simulation results show the DAC can operate at up to 25MHz with good linearity and accuracy. Layout design considerations are discussed to optimize circuit performance and minimize parasitics.
Prese000
The document describes an algorithm for synthesizing a system-level bus from a set of communication channels. The algorithm determines the optimal bus width to balance performance and interconnect cost. It computes the bus rate based on width and delay, and channel rates based on data access patterns and transfer sizes. The bus rate must be greater than or equal to the peak rates of the channels to avoid bottlenecks. The algorithm relates the bus and channel rates to efficiently implement the channels with a single bus.
ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTER
This document discusses analog to digital and digital to analog converters. It describes the basic components and functions of an operational amplifier, inverting amplifier, and non-inverting amplifier. It also summarizes two common types of digital to analog converters: weighted-register DACs and R-2R ladder DACs. Finally, it provides an overview of analog to digital converters and lists some common types, including counting, dual slope, parallel, voltage to frequency, and voltage to time conversion ADCs.
Digital to Analog Converter by LDCE students
This document describes interfacing a microcontroller with a digital-to-analog converter (DAC) to generate a sine wave signal. It includes a circuit diagram and components list for the interface, as well as an algorithm, assembly language program, and lookup table to output sine wave voltage values from the DAC. The program uses a pointer to step through the table storing sine amplitudes and sends the digital values to the DAC port to produce the analog sine wave output. An oscilloscope image confirms the generated sine wave signal.
Ad and da convertor
This document discusses analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). It explains that ADCs convert analog signals to digital signals so they can be processed by digital devices like microprocessors, while DACs perform the opposite conversion, from digital to analog. Common types of ADCs and DACs are described along with some of their applications in devices like cell phones, digital oscilloscopes, and audio players. The document also discusses efforts to improve the performance of high-speed, high-resolution ADCs through open-loop circuitry and time-interleaving techniques, as well as work on minimizing the analog area of DACs and using digital processing instead.
Interfacing adc
The document discusses interfacing an analog to digital converter (ADC) chip, specifically the 0804 and 0808 chips, with a microcontroller. It explains that the ADC converts an analog voltage to an 8-bit digital value representing voltages from 0 to 255. It provides the initialization and timing steps to start a conversion by writing to the chip and read the digital output by reading from the chip once conversion is complete.
Ditial to Analog Converter
This document discusses digital to analog converters (DACs). It explains that a DAC converts digital numbers into analog voltages or currents. The key components of a DAC are its digital input, analog output, and conversion process. Common DAC types include binary weighted resistor DACs and R-2R ladder DACs, which use resistors and switches to implement the conversion. Important DAC specifications are also outlined such as reference voltage, resolution, speed, settling time, and linearity. Common applications of DACs include function generators, digital oscilloscopes, and converting digital video signals to analog formats for display.
Data convertors
Digital to analog converters (DACs) and analog to digital converters (ADCs) allow the conversion between analog and digital signals. DACs take a digital input and output a proportional analog voltage. Common DAC types include binary weighted resistor DACs and R-2R ladder DACs. ADCs take an analog input and output a digital code representing that voltage. Common ADC types are successive approximation ADCs, dual slope integrator ADCs, and counter/staircase ramp ADCs. Data converters are essential for digital signal processing and the interfacing of analog and digital systems.
Adc.pptx ashvani 151503
This document discusses different types of analog-to-digital converters (ADCs). It describes flash ADCs, sigma-delta ADCs, digital ramp ADCs, tracking ADCs, and successive approximation ADCs. For each type, it provides a brief explanation of how the circuit works and sometimes includes a diagram. It also lists some common applications of ADCs, such as in transducers, computers, cell phones, microcontrollers, digital signal processing, digital storage, and scientific instruments.
Adc
The document discusses analog-to-digital and digital-to-analog converters. It covers key concepts like resolution, bandwidth, energy, sampling, quantization error, and signal-to-noise ratio. Common converter architectures are described, including parallel, R-2R ladder, weighted capacitor, and current-switched DACs as well as flash, pipelined, successive approximation, dual-slope, and sigma-delta ADCs. Tradeoffs between speed, accuracy, and chip area are also addressed.
Pic ppt 13104022(4th_year)
The document discusses interfacing analog to digital converters (ADCs), digital to analog converters (DACs), and sensors with PIC18F microcontrollers. It describes the basics of AD conversion including transducers. It then discusses characteristics, registers, and programming of the PIC18F ADC. It also covers DAC concepts and interfacing a DAC0888. Finally, it discusses temperature sensors and interfacing LM34 and LM35 sensors to measure temperature.
Digital to analog conversion
This document discusses digital to analog conversion. It describes how a digital to analog converter takes digital input and converts it to analog output. It explains the basic types of converters like resistor ladder converters. It also covers key performance characteristics like resolution, linearity, accuracy, settling time and temperature sensitivity.
Analog to Digital Converters
The document discusses analog to digital conversion. It begins by explaining the difference between analog and digital signals. It then provides examples of applications that require analog to digital conversion like microphones and thermocouples. The document discusses the two main steps in analog to digital conversion - quantization, which breaks down the analog value into discrete states, and encoding, which assigns a digital value to each state. It also discusses factors that affect accuracy like resolution and sampling rate. Finally, it describes several types of analog to digital converters like flash ADCs, sigma-delta ADCs, dual slope ADCs, and successive approximation ADCs.
Adc and dac
1. Analog to digital converters (ADCs) sample analog signals and convert them into digital words. This allows analog signals from sensors to be processed digitally.
2. The conversion process has two steps - quantization breaks down the analog value into discrete levels, and encoding assigns a digital code to each level. For example, a 3-bit ADC of a 0-10V signal quantizes it into 8 levels separated by 1.25V and encodes each with a 3-bit binary code.
3. There are several types of ADCs including flash, successive approximation, delta-sigma, and dual slope. Flash ADCs are fastest but most expensive, while successive approximation and dual slope ADCs are slower
Dac s05
The document discusses digital to analog converters (DACs), including their purpose of converting digital values to analog voltages, common types like binary weighted resistor and R-2R ladder DACs, key performance characteristics such as resolution, reference voltages, settling time, and errors, and applications in areas like digital audio, function generators, and motor control.
DAC , Digital to analog Converter
A digital-to-analog converter (DAC) converts a digital code, usually binary, into an analog signal like voltage or current. It works opposite of an analog-to-digital converter. A DAC filters a sequence of impulses representing the digital input into a continuously varying output voltage. Key characteristics of DACs include resolution, offset and gain errors, and monotonicity. DACs are important because they allow digital devices like computers to interface with analog systems in the real world.
More Related Content
What's hot
Analog to digital converter
ADC stands for analog to digital converter,it is use to convert analog signal to digital.In Embedded system this is very important because various device give analog input but micro-controller is process only digital input.
Adc
The document discusses the analog-to-digital converter (A/D) module used in the PIC18F microcontroller. It contains a 10-bit A/D converter that can generate a digital output value between 0-1023 depending on the input voltage. It has 8 input channels that are shared with PORTA and PORTE pins. The document also outlines the steps to perform an A/D conversion which includes configuring the channels and reference voltage, selecting the input channel and clock, starting the conversion, and reading the output value.
Dac
This document discusses digital-to-analog converters (DACs). It defines a DAC as a circuit that produces an analog output proportional to a digital input and reference voltage. The document describes two main DAC types - multiplying DACs which use an external reference, and non-multiplying DACs which use an internal reference. It also covers DAC circuit types, principles of operation, specifications, errors, and applications of DACs.
M-TECH 4th SEM PRESENTATION
This document describes the design of a 4-bit R-2R ladder digital to analog converter (DAC) using a 90nm CMOS technology process. It first discusses the design of a two-stage CMOS operational amplifier that meets given specifications. The design parameters and SPICE simulation results of the op-amp are then presented. Next, the document explains the principles of an R-2R ladder DAC and provides the specifications for the 4-bit DAC. It shows the SPICE circuit diagram and simulated output waveforms of the DAC. Comparisons are made between the expected and simulated DAC output levels. The document concludes the DAC design is suitable for the 90nm process and future work could enhance the
Digital to analog convertor
The document describes the design of a 12-bit digital to analog converter (DAC). It includes a binary weighted resistor ladder circuit to convert the digital input to an analog voltage, and an operational amplifier circuit to drive the output load. Simulation results show the DAC can operate at up to 25MHz with good linearity and accuracy. Layout design considerations are discussed to optimize circuit performance and minimize parasitics.
Prese000
The document describes an algorithm for synthesizing a system-level bus from a set of communication channels. The algorithm determines the optimal bus width to balance performance and interconnect cost. It computes the bus rate based on width and delay, and channel rates based on data access patterns and transfer sizes. The bus rate must be greater than or equal to the peak rates of the channels to avoid bottlenecks. The algorithm relates the bus and channel rates to efficiently implement the channels with a single bus.
ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTER
This document discusses analog to digital and digital to analog converters. It describes the basic components and functions of an operational amplifier, inverting amplifier, and non-inverting amplifier. It also summarizes two common types of digital to analog converters: weighted-register DACs and R-2R ladder DACs. Finally, it provides an overview of analog to digital converters and lists some common types, including counting, dual slope, parallel, voltage to frequency, and voltage to time conversion ADCs.
Digital to Analog Converter by LDCE students
This document describes interfacing a microcontroller with a digital-to-analog converter (DAC) to generate a sine wave signal. It includes a circuit diagram and components list for the interface, as well as an algorithm, assembly language program, and lookup table to output sine wave voltage values from the DAC. The program uses a pointer to step through the table storing sine amplitudes and sends the digital values to the DAC port to produce the analog sine wave output. An oscilloscope image confirms the generated sine wave signal.
Ad and da convertor
This document discusses analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). It explains that ADCs convert analog signals to digital signals so they can be processed by digital devices like microprocessors, while DACs perform the opposite conversion, from digital to analog. Common types of ADCs and DACs are described along with some of their applications in devices like cell phones, digital oscilloscopes, and audio players. The document also discusses efforts to improve the performance of high-speed, high-resolution ADCs through open-loop circuitry and time-interleaving techniques, as well as work on minimizing the analog area of DACs and using digital processing instead.
Interfacing adc
The document discusses interfacing an analog to digital converter (ADC) chip, specifically the 0804 and 0808 chips, with a microcontroller. It explains that the ADC converts an analog voltage to an 8-bit digital value representing voltages from 0 to 255. It provides the initialization and timing steps to start a conversion by writing to the chip and read the digital output by reading from the chip once conversion is complete.
Ditial to Analog Converter
This document discusses digital to analog converters (DACs). It explains that a DAC converts digital numbers into analog voltages or currents. The key components of a DAC are its digital input, analog output, and conversion process. Common DAC types include binary weighted resistor DACs and R-2R ladder DACs, which use resistors and switches to implement the conversion. Important DAC specifications are also outlined such as reference voltage, resolution, speed, settling time, and linearity. Common applications of DACs include function generators, digital oscilloscopes, and converting digital video signals to analog formats for display.
Data convertors
Digital to analog converters (DACs) and analog to digital converters (ADCs) allow the conversion between analog and digital signals. DACs take a digital input and output a proportional analog voltage. Common DAC types include binary weighted resistor DACs and R-2R ladder DACs. ADCs take an analog input and output a digital code representing that voltage. Common ADC types are successive approximation ADCs, dual slope integrator ADCs, and counter/staircase ramp ADCs. Data converters are essential for digital signal processing and the interfacing of analog and digital systems.
Adc.pptx ashvani 151503
This document discusses different types of analog-to-digital converters (ADCs). It describes flash ADCs, sigma-delta ADCs, digital ramp ADCs, tracking ADCs, and successive approximation ADCs. For each type, it provides a brief explanation of how the circuit works and sometimes includes a diagram. It also lists some common applications of ADCs, such as in transducers, computers, cell phones, microcontrollers, digital signal processing, digital storage, and scientific instruments.
Adc
The document discusses analog-to-digital and digital-to-analog converters. It covers key concepts like resolution, bandwidth, energy, sampling, quantization error, and signal-to-noise ratio. Common converter architectures are described, including parallel, R-2R ladder, weighted capacitor, and current-switched DACs as well as flash, pipelined, successive approximation, dual-slope, and sigma-delta ADCs. Tradeoffs between speed, accuracy, and chip area are also addressed.
Pic ppt 13104022(4th_year)
The document discusses interfacing analog to digital converters (ADCs), digital to analog converters (DACs), and sensors with PIC18F microcontrollers. It describes the basics of AD conversion including transducers. It then discusses characteristics, registers, and programming of the PIC18F ADC. It also covers DAC concepts and interfacing a DAC0888. Finally, it discusses temperature sensors and interfacing LM34 and LM35 sensors to measure temperature.
Digital to analog conversion
This document discusses digital to analog conversion. It describes how a digital to analog converter takes digital input and converts it to analog output. It explains the basic types of converters like resistor ladder converters. It also covers key performance characteristics like resolution, linearity, accuracy, settling time and temperature sensitivity.
Analog to Digital Converters
The document discusses analog to digital conversion. It begins by explaining the difference between analog and digital signals. It then provides examples of applications that require analog to digital conversion like microphones and thermocouples. The document discusses the two main steps in analog to digital conversion - quantization, which breaks down the analog value into discrete states, and encoding, which assigns a digital value to each state. It also discusses factors that affect accuracy like resolution and sampling rate. Finally, it describes several types of analog to digital converters like flash ADCs, sigma-delta ADCs, dual slope ADCs, and successive approximation ADCs.
Adc and dac
1. Analog to digital converters (ADCs) sample analog signals and convert them into digital words. This allows analog signals from sensors to be processed digitally.
2. The conversion process has two steps - quantization breaks down the analog value into discrete levels, and encoding assigns a digital code to each level. For example, a 3-bit ADC of a 0-10V signal quantizes it into 8 levels separated by 1.25V and encodes each with a 3-bit binary code.
3. There are several types of ADCs including flash, successive approximation, delta-sigma, and dual slope. Flash ADCs are fastest but most expensive, while successive approximation and dual slope ADCs are slower
Dac s05
The document discusses digital to analog converters (DACs), including their purpose of converting digital values to analog voltages, common types like binary weighted resistor and R-2R ladder DACs, key performance characteristics such as resolution, reference voltages, settling time, and errors, and applications in areas like digital audio, function generators, and motor control.
What's hot (20)
Viewers also liked
DAC , Digital to analog Converter
A digital-to-analog converter (DAC) converts a digital code, usually binary, into an analog signal like voltage or current. It works opposite of an analog-to-digital converter. A DAC filters a sequence of impulses representing the digital input into a continuously varying output voltage. Key characteristics of DACs include resolution, offset and gain errors, and monotonicity. DACs are important because they allow digital devices like computers to interface with analog systems in the real world.
Analogue to digital conversion
This document discusses digital technology and how analog signals are converted to digital format for use in computers and storage. It explains that:
1. Computers use binary digits (bits) represented as 0s and 1s rather than decimal digits. Bits are grouped into bytes of 8 bits each to represent numbers.
2. Analog signals like sound are converted to digital format by sampling the amplitude of the signal at regular intervals and assigning it a numeric value.
3. Increasing the sampling rate and precision of this process reduces sampling errors when converting back to an analog signal, improving fidelity of the reproduced sound.
Servo motor and AVR Atmel Atmega 16
The document discusses how to configure timers on an Arduino to generate pulse-width modulated (PWM) signals for controlling servo motors. It explains that servo motors use PWM signals of varying pulse widths to control angular position precisely. It then provides code examples and explanations for setting up timer 1 on an Arduino in fast PWM mode at 50Hz to generate the necessary PWM signals, including setting the prescaler, waveform generation mode, and compare value. It also gives examples of PWM pulse widths needed to control a servo at different angles.
ADC F28x
This ppt fully explained about ADC module architecture in tms320f2812 and explained all conrol register and once studied this ppt user can abel to work on F2812 adc module.
Digital conv keep britain tidy & the distillery
Keep Britain Tidy is a campaign to reduce littering in the UK. The document discusses their strategy for using social media to raise their profile and engage people. They aim to spread their anti-littering message through social networks like Facebook, Twitter, YouTube and Flickr. They have found social media helps give them a voice to directly reach their target audience. Their strategy focuses on creating and sharing engaging content while listening to what interests their followers the most.
Dsp U Lec03 Analogue To Digital Converters
This document discusses different types of analog-to-digital converters (ADCs). It describes counter type ADCs, successive approximation ADCs, and flash ADCs. It also discusses cascaded ADC architectures that can reduce hardware complexity for high resolution converters. Cascaded designs combine coarse and fine quantization stages to lower component count compared to single-stage flash ADCs. The optimal cascaded design trades off conversion time and hardware cost.
L293d(nonanimated)
The document discusses the L293D motor driver IC, which contains four half-H bridges that can be used to bidirectionally control two DC motors. It provides up to 600 mA of current to each motor and is interfaced with a microcontroller through four input pins to control the direction and speed of two motors independently.
L298 Motor Driver
The L298 Driver is a high voltage, high current dual ful bridge driver designed to accept standard TTL logic levels and drive inductive loads such relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together the corresponding external terminal can be used for the connection of an external sensing resistor.
Invering and non inverting amplifiers
this presentation is based on basic description of inverting and non-inverting amplifiers using op-amps and their medical use, hope it helps students :)
Analog to digital conversion
1. Analog-to-digital conversion (ADC) allows computers to interact with analog signals by sampling and quantizing analog signals from devices like CD players.
2. During recording, an ADC converts an analog audio signal into a digital format by repeatedly measuring and assigning a binary number to the signal's amplitude at set intervals defined by the sample rate.
3. During playback, a digital-to-analog converter (DAC) reconverts the digital numbers back into an analog signal by combining the amplitude information from each sample to rebuild the original wave.
Basic electronics component
This document provides information on various electronic components including resistors, capacitors, inductors, connectors, LEDs, IR modules, op-amps, and motor driver ICs. Resistors oppose current flow and have a potential drop. Capacitors store charge and are used for coupling, decoupling, and smoothing circuits. Inductors store energy in magnetic fields. The LM358 op-amp can be used as a comparator to convert analog sensor signals to digital outputs. The H-bridge and L293D motor driver ICs enable controlling motor direction and speed. An IR sensor module uses an IR LED transmitter and photodiode receiver with the LM358 to detect objects based on reflected infrared light.
Motor driver IC L293D
The document presents information on the Motor Driver IC L293D. It begins with an introduction of the topic and importance of topic presentations. It then provides details on the L293D including what it is, its pin descriptions, circuit diagram, working procedures, description of an H-bridge, and applications. The L293D is an integrated circuit used to control the direction and speed of two DC motors simultaneously up to 36V and 600mA. It works by using an H-bridge circuit configuration to allow controlling the direction of current and voltage applied to the motor. Applications mentioned include controlling robots.
Advance Microcontroller AVR
- Microcontrollers are small computers contained on a single chip that contain a processor core, memory, and input/output interfaces. They are used in automatically controlled embedded systems.
- The AVR is a family of microcontrollers developed by Atmel in the 1990s. It uses RISC architecture and is commonly used in hobbyist and commercial projects due to its low cost and availability.
- Code is burned onto AVR microcontrollers using a software program called Atmel Studio, which allows writing code in C or assembly language. The program is then loaded onto the microcontroller through its pins.
The analog to digital conversion process
The document discusses the analog to digital conversion process. It explains that sounds are analog waves but computers are digital so an conversion is needed. The sound card contains an analog-to-digital converter (ADC) that samples sounds and converts them to binary digits and a digital-to-analog converter (DAC) that converts the digital signals back to analog waves for playback. The key parameters for conversion are the sampling rate, which must be over twice the highest frequency to avoid quality issues, and the bit depth, which determines the number of possible values and thus the resolution/quality. Higher rates and depths allow for better quality recordings.
AVR_Course_Day6 external hardware interrupts and analogue to digital converter
The document discusses external hardware interrupts and analog to digital converters (ADCs) for AVR microcontrollers. It covers:
1. External interrupt registers and programming, describing how to enable/disable interrupts using SREG and EIMSK registers.
2. ADC features of AVRs, including its 10-bit resolution, registers like ADMUX for selecting channels and references, and ADCSRA for control.
3. Programming ADC using polling or interrupts in C, with examples provided. ADC polling requires waiting for conversion to complete by checking ADIF, while interrupts use ADIE.
AVR Fundamentals
1. Calibrate the line sensor readings by taking multiple samples while turning left and right to determine the minimum and maximum values.
2. Continuously read the line sensor position and calculate the proportional, integral, and derivative terms based on the error from the center.
3. Determine the difference in motor powers needed to turn toward the center based on the PID values, without allowing negative powers.
4. Set the motor speeds based on the power difference to steer toward the center line.
Introduction to AVR Microcontroller
This document provides an introduction to AVR microcontrollers. It discusses the history of microcontrollers beginning in 1971 and components like CPU, ROM, RAM and I/O. AVR microcontrollers were introduced in 1996 and range from 1 to 256KB with 8 to 100 pins. They are cheaper and slower than microprocessors but are useful for specialized applications. The document outlines the AVR architecture and family as well as development tools and support for AVR microcontrollers.
Analogue & Digital
Analogue sound storage has advantages like using less bandwidth and providing a more accurate representation of sound. However, it is susceptible to white noise distortion and quality degradation. Digital sound storage allows for easy editing and access without degrading quality. However, digital sounds can lose quality and are reliant on computer storage and functionality. Both analogue and digital signals are converted from sound waves to electrical signals and vice versa using devices like ADCs and DACs to store, transmit, and playback sound files.
Sensors And Actuators
The document discusses sensors, actuators, and input/output devices used in computer-controlled processes. It describes:
1) Sensors that measure continuous and discrete process variables and transmit signals to computers.
2) Actuators that receive signals from computers to control continuous and discrete process parameters.
3) Analog-to-digital and digital-to-analog conversion devices that allow computers to interface with analog sensors and actuators.
4) Input/output devices that allow computers to interface with discrete and pulse data from processes.
Viewers also liked (20)
AVR_Course_Day6 external hardware interrupts and analogue to digital converter
AVR_Course_Day6 external hardware interrupts and analogue to digital converter
Similar to 07 Analogue to Digital Converter(ADC).2016
Digital voltmeter using 89c51 microcontroller
Voltmeter is a voltage measuring instrument.
We can measure the potential difference between any two points in an electrical network using voltmeter.
There are two types of voltmeter as analog voltmeter and digital voltmeter.
Analog voltmeter moves pointer on a scale but it has some limitations like accuracy of few percent of full scale.
Digital voltmeter can display numerical value of voltage on a display by use of analog to digital converter (ADC).
All the data processing and manipulating is in digital form, so it is very essential to use ADC.
We have used ADC0804 analog-to-digital converter IC. The range of input voltage is 0-15V. Here the input voltage should be DC voltage so as to get the steady output on the LCD display.
If you give the AC voltage as an input, it will display continuously running numbers as the nature of AC voltage.
ADC and DAC interfacing.pdf
The document discusses interfacing analog to digital converters with microprocessors using the 8255 PIO. It describes how the 8255 is used to issue start of conversion pulses to the ADC and read the end of conversion and digital output signals. It provides examples of interfacing the ADC0808/0809 chip, which uses successive approximation conversion. Interfacing a digital to analog converter is also covered, with an example of interfacing the AD7523 DAC and generating an output sawtooth waveform.
analog to digital converter and dac final
The document discusses interfacing analog to digital converters with microprocessors using an 8255 chip as an I/O port. It describes how the 8255 is used to issue start and end of conversion signals to the ADC and read the digital output. It provides examples of interfacing common ADC chips like the 0808/0809, which use successive approximation conversion. Interfacing a digital to analog converter like the AD7523 is also covered, including a program to generate a sawtooth waveform using an 8086 CPU and 8255 port.
analog to digital converter.ppt
The document discusses analog-to-digital converters (ADCs), including what they are, the conversion process from analog to digital signals, examples of ADC applications, and different types of ADCs such as successive approximation, flash, dual slope, and delta-sigma ADCs. It also provides details on the ADC subsystem and registers of the MC9S12C32 microcontroller.
Analog to digital converter (ACD)
An analog to digital converter (ADC) allows digital circuits to interface with the real world by converting analog signals, like sound from a microphone, into digital data. ADCs work by sampling the analog signal at discrete time intervals and then quantizing the signal amplitude into discrete levels represented by a binary code. The sampling rate must be at least twice the highest frequency component of the analog signal per the Nyquist criterion. The resolution of an ADC, defined as the smallest voltage increment it can detect, is determined by the number of bits in its output. Common applications of ADCs include data acquisition, control systems, sensors, audio/video devices, and more.
UNIT 4 & 5 - I nterfacing_Lecture7.pptx
The document discusses analog sensor interfacing and analog to digital conversion. It explains that physical quantities in the real world are analog while computers use digital values, so an analog to digital converter (ADC) is used to convert analog sensor signals to digital values. It then describes the characteristics of ADCs like resolution, conversion time, reference voltage, and output data format. It provides examples of calculating the step size and digital output for different resolutions and reference voltages. Finally, it discusses different types of sensors, interfacing techniques for sensors, displays, and relays with microcontrollers.
Presentation1 (1)
The document provides an overview of a presentation made by 6 students on the microcontroller 8051, guided by their professor. It includes an introduction to microcontrollers and how they differ from microprocessors. The presentation covers the 8051's block diagram, pin diagram, important features, design and implementation, a circuit diagram including a temperature sensor and analog to digital converter, an LCD display, and applications. Temperature monitoring and ambient temperature monitoring are discussed as two applications. The conclusion thanks the audience and lists two references used in the presentation.
Analog to digital converters, adc
1) The document discusses analog-to-digital converters (ADCs), including their basic function of converting continuous analog signals to discrete digital numbers.
2) It describes several types of ADCs - flash, successive approximation, dual slope, and delta-sigma - along with their relative speeds and costs.
3) The document then focuses on the ATD10B8C ADC present on the MC9S12C32 microcontroller, outlining its key features, registers, and how to set it up and use it to take single-channel or multi-channel conversions.
ANALOG TO DIGITAL CONVERTOR
The document discusses different types of analog to digital converters (ADCs). It describes 6 main types - counter/ramp ADC, tracking ADC, successive approximation ADC, flash ADC, delta-sigma ADC, and dual slope integrating ADC. For each type it provides a brief overview of the operating principle and block diagram. It also discusses important ADC specifications and parameters such as resolution, quantization error, dynamic range, signal to noise ratio, aperture delay etc.
digi mul ppt
The document describes a project to design a digital multimeter using VHDL. It involves designing the various circuits of a multimeter like voltmeter, ammeter, and ohmmeter circuits and implementing their logic using VHDL code. The VHDL code controls an FPGA board which is connected to the circuits to switch between the different modes of the multimeter. The project aims to build a functional multimeter using an FPGA that can perform basic voltage, current, and resistance measurements.
Nsac l2 r1-adc-servos_battery
DOWNLOAD HERE: https://goo.gl/f2F7X5
Near Space Arduino Course is an open course where different aspects concerning electronics in near space environments are explained, with real experiences and exercises.
Contents:
Generalities about arduino
Battery dimensioning
BMP180
Relay
Bluetooth coms
Types of comms
GPS sentences and filtering
Iridium communication
Industrial training report of embedded system and robotics
It consists of all the necessary and important information regarding EMBEDDED SYSTEM AND ROBOTICS functionality and implementation
Módulo adc 18f4550
The document describes the analog-to-digital converter (A/D) module for PIC18F2455/2550/4455/4550 microcontrollers. The module allows conversion of an analog input signal to a 10-bit digital number. It has 10 or 13 analog input channels depending on the device, and is controlled using three registers - ADCON0, ADCON1, and ADCON2. The ADRESH and ADRESL registers together contain the 10-bit digital output of the A/D conversion.
Mixed Signal Verification of a Voltage Regulator using a State Space approach...
The document discusses mixed signal verification of a digital voltage regulator using a state space approach and SV-DC extensions. It proposes a robust methodology for verifying mixed signal ICs with large digital content using a metric driven, digital centric flow. This is illustrated through a case study of verifying a digital buck converter. The methodology partitions the system into functional blocks representing the analog/digital boundary, digital blocks, analog blocks, and board level components. Verification is done in two contexts - a metric driven flow using functional models, and a full chip functional flow using real SPICE circuits.
ANTENNA (new)LLL.pptx
This document discusses on-chip self-test solutions for analog-to-digital converters (ADCs). It begins with an introduction explaining the challenges of testing high-performance ADCs and how built-in self-test (BIST) techniques can help overcome these challenges. It then provides an overview of common ADC types and testing parameters. The proposed work involves developing on-chip BIST techniques for ADCs using machine learning, deep learning, fuzzy logic or a modified histogram approach. If implemented, the goal is to achieve low-cost and small-area on-chip testing that is flexible and can accommodate new variables or development purposes. In conclusion, previous work focused on enhancing reliability and reducing test costs and time.
Ricardo DC-DC Converter Presentation for NMI
Ricardo designed and developed a DC-DC converter for Chery Automobile's hybrid electric vehicle program. The converter was required to operate reliably in the engine bay environment for the life of the vehicle. Ricardo's design met all specifications, including high efficiency, EMC and environmental testing. During trials for the 2008 Beijing Olympics, a fleet of 50 hybrid taxis equipped with the converter drove over 29,000 hours without any reported faults. The successful project demonstrated Ricardo's ability to design automotive-grade components meeting stringent reliability and safety standards.
lab_ADC.pdf
This document describes a lab experiment using an analog temperature sensor connected to a PIC18F microcontroller. The objectives are to describe the analog-to-digital converter (ADC) section of the PIC18F, connect an LM35 temperature sensor, and program the PIC18F to read the sensor values using its ADC. Students will write code to take an ADC reading from the temperature sensor on channel 7, display the 10-bit value on 8 LEDs, and turn off the LEDs when a button is pressed. The document provides background on ADCs and guidance on connecting the sensor and programming the ADC to read temperature values in Celsius.
A 1.2V 10-bit 165MSPS Video ADC
This document describes a 10-bit 165MSPS video ADC. It uses a time-interleaved SAR architecture with multiple low-power SAR ADCs operating in parallel to achieve the high sampling rate. Each SAR ADC samples every nth cycle, resulting in an effective sampling rate that is n times higher than an individual ADC. The design achieves low power consumption and area through its digital nature and use of scaled CMOS technology. It provides offset correction through a calibration technique to improve accuracy for video applications.
Wireless Gesture Controlled Tank Toy- Transmitter
This PPT describes the construction, working and applications of Wireless gesture controlled Tank Toy (using ZigBee).
Anup2
This document is a project report on a temperature controller and display circuit created by students at Ganpat University. The circuit uses an AT89S52 microcontroller to interface with an ADC0804 analog-to-digital converter and LCD display to measure temperature from a LM35 sensor, display the current temperature, and control a relay and buzzer based on a setpoint temperature entered by the user. The circuit and programming allow the user to increment and decrement the setpoint temperature using switches and trigger an alarm if the current temperature exceeds the setpoint.
Similar to 07 Analogue to Digital Converter(ADC).2016 (20)
Industrial training report of embedded system and robotics
Industrial training report of embedded system and robotics
Mixed Signal Verification of a Voltage Regulator using a State Space approach...
Mixed Signal Verification of a Voltage Regulator using a State Space approach...
More from Mohamed Fawzy
06 Interfacing Keypad 4x4.2016
This document provides an overview of interfacing a 4x4 matrix keypad with an AVR microcontroller. It discusses that a matrix keypad reduces the number of I/O pins needed by organizing the keys in a grid with rows and columns. When a key is pressed, it connects a row and column. The document outlines that the rows are connected to an output port and the columns to an input port. It also mentions that scanning involves initializing the keypad ports and then scanning one row at a time to detect which key is pressed. The document is intended as lecture notes for a course on programming AVR microcontrollers.
05 EEPROM memory.2016
This document provides an overview of EEPROM memory and how to access it in AVR microcontrollers. It defines EEPROM as non-volatile memory that retains data even when power is lost. Some applications of EEPROM mentioned include passwords, production lines, and washing machines. The document then demonstrates how to write and read from EEPROM locations in code using the eeprom_write_byte and eeprom_read_byte functions. Finally, contact information is provided for any questions.
04 Interfacing LCD Displays.2016
This document discusses interfacing LCD displays with microcontrollers. It begins with an introduction to LCD screens, including the two main types: character and graphical LCDs. It then covers the hardware connections of LCDs, including the control and data pins. Several functions from the alcd.h library for initializing, writing to, and controlling the LCD are presented. The document demonstrates how to display numbers, custom characters, and connect multiple LCDs using the same I/O pins through a latch IC. It concludes with encouraging the reader to have fun experimenting with LCDs.
01 GPIO||General Purpose Input Output.2016
This document contains lecture notes on general purpose input/output (GPIO) for AVR microcontrollers. It discusses GPIO pins on the ATmega32 microcontroller, how to configure pins as inputs or outputs, and interfacing examples with LEDs and buttons. It provides code examples for blinking an LED, reading a button press, and two programming projects - a password system using buttons and LEDs, and a two-player game to increment port values and identify the first to reach 255. The document is intended to teach basic GPIO concepts and their application in microcontroller programming.
00 let us get started.2016
This document provides an overview of programming AVR microcontrollers. It covers topics such as microcontroller components, memory types, programming languages, and software tools. The lessons include an introduction to microcontrollers, a review of C programming basics, and how to install the CodeVisionAVR and Protuse software tools for programming AVR microcontrollers. The document aims to equip readers with foundational knowledge for programming and working with AVR microcontrollers.
Ce from a to z
The document outlines the key differences and similarities between computer engineering and computer science. It then lists several fields that computer engineers can work in, such as application development, computer networking, cloud computing, databases, big data, information security, algorithms design, image processing, artificial intelligence, compilers, operating systems, embedded systems, VLSI design, and business intelligence. It also discusses computer engineering in the Faculty of Engineering at Ain Shams University and provides advice for students such as focusing on essential courses, starting early, teaching yourself online, self-branding, and becoming a specialist.
Taqa
This document proposes a system to monitor and control home power consumption. The system would continuously monitor usage through sensors and allow users to remotely manage consumption via an app. This would make users more aware of their usage, help them save power by managing devices manually or automatically, and avoid going over consumption quotas set by utilities. The system aims to encourage power savings among customers and help governments manage consumption during outages.
C programming day#2.
The document provides lecture notes on C programming concepts including arrays, control statements, pointers, functions, and dynamic memory allocation. It defines arrays as fixed-size collections that store elements of the same type in contiguous memory locations. Control statements covered include for, while, do-while loops, and break and continue keywords. Pointers are explained as variables that store memory addresses and are used for call by reference with functions. Function prototypes, definitions, and calling conventions are demonstrated. Finally, pointers to functions are shown as allowing functions to be passed as parameters to other functions.
C programming day#3.
The document discusses various topics in C programming language including strings, user-defined data types, scope rules, typedef, modularity, header files, storage classes, and the preprocessor. It provides examples and explanations of each topic. Specifically, it covers how to define and use strings, structures, and arrays in C. It also discusses passing structures by value versus reference.
C programming day#1
The document provides an overview of C programming basics including:
- A brief history of the C programming language and why it is commonly used in embedded systems.
- The basic structure of a C program including comments, header files, functions, and data types.
- How to declare and initialize variables in C including different data types.
- Operators and expressions in C including arithmetic, relational, logical, and bitwise operators.
- Decision making and control flow in C using if/else statements and switch cases.
- Instructions to ask questions and contact the instructor for help.
More from Mohamed Fawzy (10)
Recently uploaded
bank management system in java and mysql report1.pdf
truth is high but higher still is truth full living
New techniques for characterising damage in rock slopes.pdf
rock mass characterization and New techniques for characterising damage in rock slopes
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Modelagem de um CSTR com reação endotermica.pdf
Modelagem em função de transferencia. CSTR não-linear.
Recycled Concrete Aggregate in Construction Part III
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
5214-1693458878915-Unit 6 2023 to 2024 academic year assignment (AutoRecovere...
Bigdata of technology
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
The smart irrigation system represents an innovative approach to optimize water usage in agricultural and landscaping practices. The integration of cutting-edge technologies, including sensors, actuators, and data analysis, empowers this system to provide accurate monitoring and control of irrigation processes by leveraging real-time environmental conditions. The main objective of a smart irrigation system is to optimize water efficiency, minimize expenses, and foster the adoption of sustainable water management methods. This paper conducts a systematic risk assessment by exploring the key components/assets and their functionalities in the smart irrigation system. The crucial role of sensors in gathering data on soil moisture, weather patterns, and plant well-being is emphasized in this system. These sensors enable intelligent decision-making in irrigation scheduling and water distribution, leading to enhanced water efficiency and sustainable water management practices. Actuators enable automated control of irrigation devices, ensuring precise and targeted water delivery to plants. Additionally, the paper addresses the potential threat and vulnerabilities associated with smart irrigation systems. It discusses limitations of the system, such as power constraints and computational capabilities, and calculates the potential security risks. The paper suggests possible risk treatment methods for effective secure system operation. In conclusion, the paper emphasizes the significant benefits of implementing smart irrigation systems, including improved water conservation, increased crop yield, and reduced environmental impact. Additionally, based on the security analysis conducted, the paper recommends the implementation of countermeasures and security approaches to address vulnerabilities and ensure the integrity and reliability of the system. By incorporating these measures, smart irrigation technology can revolutionize water management practices in agriculture, promoting sustainability, resource efficiency, and safeguarding against potential security threats.
Iron and Steel Technology Roadmap - Towards more sustainable steelmaking.pdf
Iron and Steel Technology towards Sustainable Steelmaking
22CYT12-Unit-V-E Waste and its Management.ppt
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
6th International Conference on Machine Learning & Applications (CMLA 2024)
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Recently uploaded (20)
2. Operations Strategy in a Global Environment.ppt
2. Operations Strategy in a Global Environment.ppt
bank management system in java and mysql report1.pdf
bank management system in java and mysql report1.pdf
New techniques for characterising damage in rock slopes.pdf
New techniques for characterising damage in rock slopes.pdf
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning an...
Recycled Concrete Aggregate in Construction Part III
Recycled Concrete Aggregate in Construction Part III
5214-1693458878915-Unit 6 2023 to 2024 academic year assignment (AutoRecovere...
5214-1693458878915-Unit 6 2023 to 2024 academic year assignment (AutoRecovere...
Embedded machine learning-based road conditions and driving behavior monitoring
Embedded machine learning-based road conditions and driving behavior monitoring
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
A SYSTEMATIC RISK ASSESSMENT APPROACH FOR SECURING THE SMART IRRIGATION SYSTEMS
Iron and Steel Technology Roadmap - Towards more sustainable steelmaking.pdf
Iron and Steel Technology Roadmap - Towards more sustainable steelmaking.pdf
basic-wireline-operations-course-mahmoud-f-radwan.pdf
basic-wireline-operations-course-mahmoud-f-radwan.pdf
6th International Conference on Machine Learning & Applications (CMLA 2024)
6th International Conference on Machine Learning & Applications (CMLA 2024)
07 Analogue to Digital Converter(ADC).2016
- 1. 1 07-ADC (Analog to Digital Converter). By : Mohamed Fawzy Programming AVR Microcontrollers © Mohamed F.A.B 2015
- 2. Lecture Notes: 2 o Set Your Phone To Vibration Mode. o Ask any time. o During labs, Feel Free To Check Any Materials or Internet. o Slides are self content. o Feel Free To Share This Materials With Your Friends. o Work Hard For Achieving Most Of This Course. © Mohamed F.A.B 2015
- 3. 3 Don't Forget !!!! © Mohamed F.A.B 2015 Any Expert Was Once A Beginner
- 4. 4 Lesson(12). © Mohamed F.A.B 2015 Lesson (12): Analogue to Digital Conversion.
- 5. 5 Lesson (12) Topics. © Mohamed F.A.B 2015 ► What and Why ADC. ► Characteristics of ADC. ► Interfacing LM35 temperature sensor.
- 6. 6 What & Why ADC? © Mohamed F.A.B 2015 Digital Computers uses binary values, but in physical world everything is analog. Temperature, Pressure, humidity, and velocity are examples of physical quantities. A physical quantity is converted to electrical signals (voltage or current) using device called sensor. So, we need Analog-to-Digital Converter to translate the analog signal to digital numbers so that micro- controller can read and process them.
- 7. 7 Example. © Mohamed F.A.B 2015 Analog Digital 0 1 1 0 0 0 0 1
- 8. 8 Characteristics of ADC. © Mohamed F.A.B 2015 The resolution of ADC is the number of bits at which converted data stored in such as 8, 10, 16 or even 24-bit. Resolution Vref It is an input voltage used for voltage reference. 𝑠𝑡𝑒𝑝 𝑠𝑖𝑧𝑒 = [(𝑉𝑟𝑒𝑓+) − (𝑉𝑟𝑒𝑓−)] 2 𝐵𝑖𝑡 𝑛𝑜 𝑠𝑡𝑒𝑝 𝑠𝑖𝑧𝑒 = [5 −0 ] 210 = 5 1024 =0.00488 V*1000=4.88 mv Higher resolution ADCs means smaller step size and high accuracy. Smaller Vref ADCs means smaller step size and high accuracy. NOTES:
- 9. 9 Characteristics of ADC. Cont’ © Mohamed F.A.B 2015 Conversion Time: Conversion time is the time it takes to convert the single analogue sample to digital. o Example. Digital Output= 𝑉_𝐼𝑛𝑝𝑢𝑡 𝑆𝑡𝑒𝑝_𝑆𝑖𝑧𝑒
- 10. 10 ADC Features of ATMEGA32. © Mohamed F.A.B 2015 10 bit ADC. It has 8 analog input channels. Converted output binary data is held by two registers ADCL and ADCH. Three options for Vref (VCC or 2.56V or External AREF pin). Conversion time is defined by crystal frequency connected to XTAL pins and ADPS0:2.
- 11. 11 ADC registers in ATMEGA32. © Mohamed F.A.B 2015
- 12. 12 ADC registers in ATMEGA32. cont’ © Mohamed F.A.B 2015
- 13. 13 ADC registers in ATMEGA32. cont’ © Mohamed F.A.B 2015 • Bit 7 – ADEN : ADC Enable. • Bit 6 – ADSC :ADC Start Conversion. • Bit 5 – ADATE :ADC Auto Trigger Enable. • Bit 4 – ADIF:ADC Interrupt Flag. • Bit 3 – ADIE:ADC Interrupt Enable. • Bit 2:0 – ADPS2:0: ADC Prescaler Select Bits.
- 14. 14 ADC conversion time. © Mohamed F.A.B 2015
- 15. 15 ADC in ATMEGA32. © Mohamed F.A.B 2015 We need to make digital voltmeter to measure 5 volt power supply. What about 12V or 24V Exercise (1). We need to make temperature controller using LM35 Temperature sensor. Exercise (2).
- 16. 16 Questions: © Mohamed F.A.B 2015
- 17. Thank You All 17 mo7amed.fawzy33@gmail.com 01006032792 fawzy.fab@gmail.com © Mohamed F.A.B 2015