Operational amplifier lecture series
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- Module - 4 Lecture - 1 Operational Amplifier (Introduction) - NPTEL Basic Electronics
- Lectures Week 8 The operational amplifier op amp
- Lectures held so far
- Video lectures from the iCS group @ IIT Madras
- 5M10.95 - Operational Amplifiers - (Op-amps)
- Something went wrong...
- Operational amplifiers first LIC lecture slides
- ELEC 454: Analog Electronics
- Lecture 9: Operational Amplifiers - PowerPoint PPT Presentation
- Electronics I
Module - 4 Lecture - 1 Operational Amplifier (Introduction) - NPTEL Basic Electronics
In analog electronics, including signal processing, operational amplifiers are very important components. These are active components in contrast to the passive components we have seen so far. As such they are really outside the scope of these lecture series. We only give a very brief introduction as we need an op amp in one of the circuits in the practical course and because opamps are a very nice example of the use of feedback in signal processing systems.
Approximately we can take it to be infinitely large. We call it an ideal opamp. As an open loop amplifier an opamp is of little use. The output will be clipped by the power supply and that even for very small potential difference at the input.
The opamp shines in case we use it in a feedback configuration. The easiest feedback loop configuration is the opamp with unity gain, i. This circuit is also called a buffer or a unity gain amplifier. These two observations can be proven to characterize circuits with opamps that are more complex than the simple unity gain amplifier.
These observations are the principles of the ideal opamp :. Given that no current is flowing into or out of the opamp, i. This is a good thing in practice as the open loop amplification is not constant over opamps even of the same type and for any opamp is dependent on temperature and other parameters. The use of negative feedback stabilizes the properties of the opamp circuit. It depends on the type op opamp what is bandwidth is. This capability can be used to build frequency dependent opamp circuits by introducing capacitors and sometimes even inductors in the feedback loop of an opamp circuit.
Operational amplifiers can also be used to add signals. Consider the following extension to the inverting amplifier showing a way to mix three different audio signals.
A summing opamp is used to mix three audio signals. Note that the US style for resistors is used the squigly line and that a resistor with an arrow pointing to it is variable voltage divider a potentiometer. The capacitors at the input are used to decouple the amplifier from any DC signal in the inputs. A summing opamp configuration used to convert digital into analog. Signal Processing 1. Lecture Notes Digital Signal Processing 1. Systems and Signals 1.
Systems 1. Signals 1. Plotting Signals 1. Signal Properties 1. Signal Transformations 1. Basic Signals 1. Decibels 1. Exercises 2. Linear Time Invariant Systems 2. Definition and Properties 2. Linearity and Time Invariance 2. Stable Systems 2. Causal Systems 2. Convolutions 2. Properties and Recipe 2.
Linear Discrete Time Systems 2. Eigenfunctions 2. Exercises 3. The Frequency Domain 3. Continuous Time Fourier Series 3. The Complex Exponential Functions 3. The Fourier Series 3. Properties of the CT Fourier Series 3. Fourier Series Examples 3. Continuous Time Fourier Transform 3. The Fourier Transform 3. Properties of the CT Fourier Transform 3. Duality 3.
Fourier Transform Pairs 3. The Discrete Time Fourier Transform 3. Properties of the DTFT 3. Introducing Time 3. Discrete Time Fourier Series 3. Synthesis and Analysis Equations 3.
Properties of Discrete Time Fourier Series 3. Time and Frequency 3. DTFS in Numpy 3. The Fast Fourier Transform 3. Exercises 4. The Complex Domain 4. The S-Domain 4. The Laplace Transform 4. Relation with the Fourier transform 4.
The pulse, step and exponential function 4. Derivatives and Integrals 4. Convolutions 4. Properties of the unilateral Laplace transform 4. Table of Selected Laplace Transforms 4. Differential Equations 4. The Z-Domain 4. Definition 4. Finite and Infinite Signals 4. Pulse and Shift 4. Convolution in Z-domain 4. Eigenfunctions of LTI system 4.
Z-Transform and the Fourier Transform 4. The Transfer Function in the Z-domain 4. Poles and Zeros 4. The Z-Operator 4. Exercises 5. Applications 5. Sound and Sound Processing 5. What is sound? Human Perception of Sound 5. Sound Level Measurement 5. A word of warning 5. Sound Recording 5. Sound Compression 5. Analog Electronics 5. Parallel Circuits 5.
Kirchhoffs Laws 5. Highway to Hell 5.
Lectures Week 8 The operational amplifier op amp
In analog electronics, including signal processing, operational amplifiers are very important components. These are active components in contrast to the passive components we have seen so far. As such they are really outside the scope of these lecture series. We only give a very brief introduction as we need an op amp in one of the circuits in the practical course and because opamps are a very nice example of the use of feedback in signal processing systems. Approximately we can take it to be infinitely large. We call it an ideal opamp. As an open loop amplifier an opamp is of little use.
Lectures held so far
Toggle navigation. Help Preferences Sign up Log in. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Lecture 9: Operational Amplifiers. Description: Lecture 9: Operational Amplifiers Today, we will introduce our first integrated circuit element: the operational amplifier. Provided by: WilliamO
Video lectures from the iCS group @ IIT Madras
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5M10.95 - Operational Amplifiers - (Op-amps)
Download the video from iTunes U or the Internet Archive. And the topic is going to be -- We will talk about this thing called an Operational Amplifier. Before I get into the lecture, I want to point out a couple of things. One is that you are going to hear about two big words in today's lecture. And I want to mention those words to you right now so that when I come to them in lecture you can say OK, I better pay really close attention, these are important words. All right.
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The links below are lecture notes were taken during the M. The notes may not reflect the entire course outlines and consist of what I have recovered from my archives. Isolated converter. The notes are based on various books, however, most of the credit goes to the books by John M Yarbrough and Morris Mano. P Gopakumar The video lectures of Prof. P Gopakumar are available on youtube. I have seen them and made notes of all lectures.
Operational amplifiers first LIC lecture slides
An operational amplifier often op amp or opamp is a DC-coupled high- gain electronic voltage amplifier with a differential input and, usually, a single-ended output. Operational amplifiers had their origins in analog computers , where they were used to perform mathematical operations in linear, non-linear, and frequency-dependent circuits. The popularity of the op amp as a building block in analog circuits is due to its versatility. By using negative feedback , the characteristics of an op-amp circuit, its gain, input and output impedance , bandwidth etc.
ELEC 454: Analog Electronics
RELATED VIDEO: Operational Amplifiers - Inverting \u0026 Non Inverting Op-AmpsPallasAreny and J. In an op-amp circuit, the operating characteristic. A half wave rectified sine wave b. A fullwave rectified sine wave c. A triangular wave d.
Lecture 9: Operational Amplifiers - PowerPoint PPT Presentation
Differential amplifier is a basic building block of an op-amp. The function of a differential amplifier is to amplify the difference between two input signals. Explain in details about the Differential Amplifiers. Write an explantory note on Differential Amplifiers. Branch : Electronics and Communication Engineering. Subject : Analog Electronic Circuits. Unit : Operational Amplifiers.
Electronics I
There are 4 made up circuit that are designed around the op-amp chip. In each case the power is supplied by two 9 volt batteries. All the ground leads from the wave generator and the two channels of the oscilloscope must be connected to the ground post.
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