Block diagram of a typical op-amp – characteristics of ideal and practical op-amp - parameters of opamp – inverting and non-inverting amplifier configurations - frequency response - circuit stability.
this presentation is based on basic description of inverting and non-inverting amplifiers using op-amps and their medical use, hope it helps students :)
Introduction to operational Amplifier. For A2 level physics (CIE). Discusses characteristics of op amp, inverting and non inverting amplifier, and voltage follower, and transfer characetristics, virtual earth , etc
Block diagram of a typical op-amp – characteristics of ideal and practical op-amp - parameters of opamp – inverting and non-inverting amplifier configurations - frequency response - circuit stability.
this presentation is based on basic description of inverting and non-inverting amplifiers using op-amps and their medical use, hope it helps students :)
Introduction to operational Amplifier. For A2 level physics (CIE). Discusses characteristics of op amp, inverting and non inverting amplifier, and voltage follower, and transfer characetristics, virtual earth , etc
This presentation contains the basic information you need to know about operational amplifier.
I have tried to cover all the basic info. If anything is left out or you have any suggestions i will appreciate it.
The performance obtainable from a single-stage amplifier is often insufficient for many applications, hence several stages may be combined forming a multistage amplifier. These stages are connected in cascade, i.e. output of the first stage is connected to form input of second stage, whose output becomes input of third stage, and so on.
thank u
Hansraj MEENA
Field-effect transistor amplifiers provide an excellent voltage gain with the added feature of high input impedance. They are also low-power-consumption configurations with good frequency range and minimal size and weight.
JFETs, depletion MOSFETs, and MESFETs can be used to design amplifiers having similar voltage gains.
The depletion MOSFET (MESFET) circuit, however, has a much higher input impedance than a similar JFET configuration.
Rec101 unit ii (part 2) bjt biasing and re modelDr Naim R Kidwai
The presentation covers BJT Biasing: Operating Point or Q point, Fixed-Bias, Emitter Bias, Voltage-Divider Bias, Collector Feedback bias, Emitter-Follower bias, common base bias, bias Stabilization and re model of CB/ CE/ CC configuration
This presentation contains the basic information you need to know about operational amplifier.
I have tried to cover all the basic info. If anything is left out or you have any suggestions i will appreciate it.
The performance obtainable from a single-stage amplifier is often insufficient for many applications, hence several stages may be combined forming a multistage amplifier. These stages are connected in cascade, i.e. output of the first stage is connected to form input of second stage, whose output becomes input of third stage, and so on.
thank u
Hansraj MEENA
Field-effect transistor amplifiers provide an excellent voltage gain with the added feature of high input impedance. They are also low-power-consumption configurations with good frequency range and minimal size and weight.
JFETs, depletion MOSFETs, and MESFETs can be used to design amplifiers having similar voltage gains.
The depletion MOSFET (MESFET) circuit, however, has a much higher input impedance than a similar JFET configuration.
Rec101 unit ii (part 2) bjt biasing and re modelDr Naim R Kidwai
The presentation covers BJT Biasing: Operating Point or Q point, Fixed-Bias, Emitter Bias, Voltage-Divider Bias, Collector Feedback bias, Emitter-Follower bias, common base bias, bias Stabilization and re model of CB/ CE/ CC configuration
DIFFERENTIAL AMPLIFIER using MOSFET, Modes of operation,
The MOS differential pair with a common-mode input voltage ,Common mode rejection,gain, advantages and disadvantages.
Understand the “magic” of negative feedback and the characteristics of ideal op amps.
Understand the conditions for non-ideal op amp behavior so they can be avoided in circuit design.
Demonstrate circuit analysis techniques for ideal op amps.
Characterize inverting, non-inverting, summing and instrumentation amplifiers, voltage follower and first order filters.
Learn the factors involved in circuit design using op amps.
Find the gain characteristics of cascaded amplifiers.
Special Applications: The inverted ladder DAC and successive approximation ADC
Ideal OP
AMP characteristics, DC characteristics, AC
characteristics, differential amplifier; frequency response of
OP AMP; Basic applications of op amp Inverting and Non
inverting Amplifiers, summer, differentiator and integrator
V/I & I/V converters.
Introduction to Linear ICs– BJT differential amplifier-Operational amplifier IC 741–Block diagram and Characteristics - Inverting, non inverting and difference amplifier – Adder, Subtractor, Integrator, Differentiator-Comparator- Window detector- Regenerative comparator (Schmitttrigger) - Precision rectifier- Current to voltage converter – Voltage to current converter
-Log and antilog amplifiers- Instrumentation amplifiers.
Similar to Rec101 unit iii operational amplifier (20)
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The presentation covers, synchronous sequential circuits; registers and counters. design of registers, shift registers are explained. Design of counter, synchronous and ripple counter is demostrated.
The presentation covers clocked sequential circuit analysis and design process demonstrated with example. State reduction and state assignment is design is also described.
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The presentation covers infrastructure project financing, typical configurations, key project parties, project contracts, It explains financing of a power project, security mechanism, SPV payment hierarchy and risk mitigation mechanism
The presentation covers project financing, capital structure, key factors in determining debt equity ratio, menu of financing, sources of capital, internal accruals, equity capital, preference capital, debenture or bonds, methods of offering, term loan, working capital advances, project financing structures,
The presentation covers project constraints: project dependence, capital rationing, project invisibility. It covers comparing project under constraints: methods of ranking, ranking conflicts,
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The presentation explains concept of Probability, random variable, statistical averages, correlation, sum of random Variables, Central Limit Theorem,
random process, classification of random processes, power spectral density, multiple random processes.
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Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
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Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
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A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
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Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
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Author: Robbie Edward Sayers
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Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
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Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
1. Operational Amplifiers
Operational Amplifiers : Introduction and Block diagram of Op Amp, Ideal &
Practical characteristics of Op Amp, Differential amplifier circuits, Practical
OpAmp Circuits (Inverting Amplifier, Non inverting Amplifier, Unity Gain
Amplifier, Summing Amplifier, Integrator, Differentiator). OPAMP
Parameters: Input offset voltage, Output offset voltage, Input biased
current, Input offset current Differential and Common-Mode Operation
9/15/2017 1
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
2. Introduction and Block diagram of Op-Amp
9/15/2017 2
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
• Op-Amp or operational amplifiers, is a very high gain differential
amplifier with high input impedance and low output impedance.
• Op-Amp find common application in mathematical operations like
addition, subtraction, integration etc. thus term operational is given
• Nowadays op-amps are IC based (Integrated circuit) that require
relatively low power, reliable and inexpensive.
• Op-Amp’s originated around 1947
+
-
+VCC
-VEE
Non Inverting
input
Inverting
input
OutputAV
Op-Amp
741
1 2 3 4
8 7 6 5
OffsetNull
Inverting
NonInverting
-VEE
VCC
Output
OffsetNull
Open
+
-
Non Inverting
input
Inverting
input
OutputAV
3. Introduction and Block diagram of Op-Amp
9/15/2017 3
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
• A typical op-amp is made up of three stages;
• differential amplifier stage
• voltage amplifier
• push-pull amplifier stage
• Input stage of op-amp is differential amplifier. It provides
amplification of the difference voltage between the two inputs.
• The second stage is a class A amplifier that provides additional
gain. Some op-amps may have more voltage amplifier stages
• A push-pull class B amplifier is typically used for the output stage.
Differential
amplifier Input
stage
Voltage
amplifier gain
stage
Push-pull
amplifier
output stage
+
-
Vd
output
4. Op Amp Modes of operation
9/15/2017 4
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Single Differential mode
+
-
AV
Vi
Vo = AV Vi
+
-
AV
Vi
Vo = -AV Vi
double Differential mode
+
-
AV
V1
Vo = AV(V1–V2)
V2
+
-
AVVi
Vo = AVVi
Differential Mode: In Differential mode, output of op-amp
input;aldifferentigain,voltagealdifferentiwhere
VVVVA
VAV
ddv
dvo
5. Op-Amp Parameters
Open loop Voltage gain (Av): The open-
loop gain of an Op-Amp is the gain obtained
with respect to differential input when op-
amp is used in open loop (no feedback)
Output offset voltage VOO: In practical op-
amp, a small dc voltage called output offset
voltage VOO, appears at the output when no
differential input voltage is applied.
Input offset voltage VOS: is the differential
dc voltage required between the inputs to
force the output to zero volts. Typical
values of input offset voltage are upto 2 mV.
Ideally VOS is 0 V.
9/15/2017 5
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
AVVd
Vo = AVVd
+
-
AVVOS
VO =0
+
-
AV
VOO
6. Op-Amp Parameters
Input biased current (IBias): is the average of
currents at both inputs of Op-amp (required to
operate properly amplifier first stage).
Input offset current (IOS): Ideally, the two
input bias currents are equal, but practically is
not. IOS is the absolute difference of the input
bias currents. (with magnitudes at least ten
times less than the bias current.
Slew Rate: is maximum rate of change of the
output voltage in response to a step input.
Slew rate depends upon the high-frequency
response of the amplifier stages of op-amp.
Slew rate =maximum rate at which Op-Amp
output can change (V/s)
9/15/2017 6
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
AV
VO
V1
V2
I2
I1
2
21 II
IBias
21 IIIOS
+
-
Vo
Vi
t
Vi
t
V0
7. Op-Amp Parameters
Input biased current (IBias): is the average of currents at both inputs of
Op-amp (required to operate properly amplifier first stage).
Input offset current (IOS): Ideally, the two input bias currents are
equal, but practically is not. IOS is the absolute difference of the input
bias currents. (with magnitudes at least ten times less than IBias)
9/15/2017 7
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
AV
VO
V1
V2
I2
I1
2
21 II
IBias
21 IIIOS
+
-
Vo
Vi
t
Vi
Slew Rate: is maximum rate of change of the output voltage in
response to a step input expressed in V/s. Slew rate depends upon
the high-frequency response of the amplifier stages of op-amp
t
V0 t
V t
V
rateSlew
8. Op Amp Modes of operation
9/15/2017 8
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
AV
Vi
Vo = 0
Vi
Common mode operation: In common mode common input is
applied on both inputs of op-amp. The difference applied is zero so
the output is zero. This action is called common mode rejection
Common mode rejection ratio (CMRR): Practical op-amps provide
small common mode gain with very large differential mode gain.
CMRR is defined as
It means that unwanted signal appearing on both
inputs will be rejected and will not distort output
cm
OL
A
A
dBCMRR
CMRR
log20)(
)(Againvoltagemodecommon
)(AgainvoltagealdifferentiloopOpen
cm
OL
9. Ideal & Practical characteristics of Op Amp
9/15/2017 9
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
ideal practical
Differential Voltage gain 106
bandwidth MHz
Input impedance M
output impedance 0 100’s
Slew rate 0.5 V/s
CMRR 90 dB
Input offset voltage 0 1 mV
Ideal and practical characteristics of op-amp is given in table below
10. Differential amplifier circuits
9/15/2017 10
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
The differential amplifier circuit is an extremely popular circuit used.
It has two separate inputs and two separate outputs which are
related to difference of inputs.
Differential amplifier works in differential & common mode
• If an input signal is applied to either input with the other input connected to
ground, the operation is referred to as “single-ended differential mode.”
• If two different input signals are applied, the operation is referred to as “double-
ended differential mode.”
• If the same input is applied to both inputs, the operation is called common-mode
Main feature of differential amplifier is very large gain for differential
input as compared to the very small gain for common inputs. The
ratio of this difference gain to the common gain is called common-
mode rejection.
11. Differential amplifier circuits
9/15/2017 11
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Q1 Q2
RE
RC
RC
VCC
-VEE
VO2VO1
Vi1 Vi2
Vo1
Vi2 Vo2
Vi1
Differential amplifier circuit using BJT
Differential amplifier Symbolic notation
12. Op-Amp
9/15/2017 12
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Virtual ground: When op-amp is used in feedback, potential
difference between the inputs to nearly zero (due to very high open
loop gain) and no current flows to the input of op-amp.
Steps to solve op-amp circuits :
Open loop configuration:
• Find the potential between non-inverting to inverting input (V+-V-)
• Output is open loop gain (Av) times the difference input, Vo=Av(V+-V-)
Feedback configuration:
• Due to virtual ground, voltage at both input terminals of op-amp are
equal & no current flow to the inputs of op-amp ( input impedance)
• Solve the circuits for unknowns using Kirchhoff law’s
• If Op-Amp saturates for any input (output rises close to bias voltage
magnitude), output is equal to saturation voltage
13. Inverting Amplifier
Applying KCL at inverting junction
9/15/2017 13
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
Vo
RF
Vi
R V=0
I
IF
i
F
O
F
Oi
V
R
R
V
R
oV
R
oV
or
or
-II F
R
R
V
V F
i
O
Againvoltage
With negative feedback through a resister, input be applied on
inverting terminal through another resister, while non inverting
terminal is grounded, Op-Amp acts as an inverting amplifier
14. Non inverting Amplifier
9/15/2017 14
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Applying KCL at inverting junction
+
-
Vo
RF
Vi
R Vi
I
IF
i
F
iO
F
iOi
V
R
R
VV
R
VV
R
V
or
0
or
-II F
R
R
V
V F
i
O
1Againvoltage
With negative feedback through a resister, input be applied on non-
inverting terminal, while inverting terminal is grounded through
another resister, Op-Amp acts as an non-inverting amplifier
15. Unity Gain (Buffer) Amplifier
9/15/2017 15
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
Vo =- Vi
R
Vi
R V=0
I
IF
In non-inverting amplifier configuration, if RF=R, then voltage gain is
unity (in inverting mode). The output follows input (with 1800
phase shift), therefore it is called unity follower configuration.
unity follower configuration of op-amp is achieved by connecting
output of op-amp & input waveform to inverting input of op-amp.
Connecting wire’s small resistance serve the purpose of resistances.
+
-
Vo =- Vi
Vi
V=0
I
IF
16. Summing Amplifier
A popular application of an op-amp is as a summing amplifier.
Various input voltages can be summed (each multiplied by a
different weight) as shown in below circuit
9/15/2017 16
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
+
-
Vo
RF
R2 V=0
I2
IF
V2
R1
I1
V1
R3
I3
V3
Applying KCL at inverting junction
F
O
R
oV
R
oV
R
oV
R
oV
3
3
2
2
1
1
F321
or
-IIII
321321
3
3
2
2
1
1
thenIf VVVVRRRR
V
R
R
V
R
R
V
R
R
V
OF
FFF
O
17. Integrator
Op-amp can be used as a integrator with feedback capacitor
connected at inverting terminal and applying input through a
resistor at inverting terminal
9/15/2017 17
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Applying KCL at inverting junction
0
0
or
-II F
O
i
V
dt
d
C
R
V
+
-
Vo
C
Vi
R V=0
I
IF
t
iO dV
RC
V
0
1
18. Differentiator
9/15/2017 18
REC 101 Unit I by Dr Naim R Kidwai,
Professor & Dean, JIT Jahangirabad
Op-amp can be used as a differentiator by with applying input
through a capacitor inverting terminal and negative feedback
Applying KCL at inverting junction
R
V
V
dt
d
C i
0
0or
-II
0
F
+
-
Vo
Vi R
V=0
I
IF
C
iO V
dt
d
RCV