This document provides an introduction to analog to digital converters (ADCs) and digital to analog converters (DACs). It discusses the basic concepts of sampling, quantization, and encoding in analog to digital conversion. It also covers resolution in ADCs and different types of ADCs and DACs. The document aims to explain the core concepts behind data conversion that are used in applications like computers, mobile phones, sensors and audio devices.

1. Introduction to ADC &
DAC
Presenter:- Nikhil Raut
RCOEM Nagpur
Engineeering- III Year
Email- rautnr_1@rknec.edu
MO: +919975380609

3. Microphone
Headphones
Loud Speaker
Sensors
(temperature,
pressure etc)
Computers/Laptops/ipa
d
Mobile Phone
MP3 Player
Digital Camera

4. INTRODUCTION TO ADC & DAC
There are two types of data converters:
# 1. Analogue to Digital Converter (ADC)
# 2. Digital to Analogue Converter (DAC)

5. TOPIC
• 1.What is ADC and DAC Why we use ADC and DAC ?
• 2.​ Conversion steps for analog to digital conversion (Sampling,
Quantization, and Encoding)
• 3.What is Quantization? What is Resolution of ADC ?
• 4. What is Sampling ?
• 5.Digital to Analog Converter
• 6. Types of ADC and DAC

8. STREAMING MUSIC ON SMARTPHONE

19. Quantization :- it is the Process of assigning a Sampled
Signal a Value from the discrete set of values.
Encoding
10100101101

20. RESOLUTION
Resoluti
on
2^n

28. R2R DAC

29. • PWM in DAC
• This is the type of DAC that most of us have used without even
knowing it!
• The popular Arduino microcontroller has the capability to output
analog signals using a PWM signal.
• On the outset the PWM signal looks like a binary waveform with only
high and low peaks with a variable duty cycle (ratio of on time to time
period).

30. ARDUINO MICROCONTROLLER BOARD