Operation Amplifier. Golden Rules of OP Amp 1.i in =0, no current flow into op amp. 2.V + =V - Typically one end of op amp is connected to ground, therefore,

Slides:



Advertisements
Similar presentations
Operational Amplifiers
Advertisements

The Inverting Mode Op-Amp. What is the Inverting Mode ? The op-amp can be connected up in various ways or modes. What it does depends on how it is connected.
Operational Amplifier
1 Electronic Circuits OP AMPs. 2 Electronic Circuits Operational amplifiers are convenient building blocks that can be used to build amplifiers and filters.
ENTC 3320 Absolute Value.
ECE201 Lect-161 Operational Amplifiers ( ) Dr. Holbert April 3, 2006.
Experiment 8 * Op Amp Circuits Review * Voltage Followers and Adders
Operational Amplifiers
Introduction to the OP AMP
ECE 201 Circuit Theory I1 Introduction to the Operational Amplifier μA 741 OP AMP.
Operational Amplifiers (Op Amps) Discussion D3.1.
Lecture 91 Loop Analysis (3.2) Circuits with Op-Amps (3.3) Prof. Phillips February 19, 2003.
Chapter 2 – Operational Amplifiers
Op Amps Lecture 30.
1 More on Op Amps Discussion D Ideal Op Amp 1) The open-loop gain, A v, is infinite. 2) The current into the inputs are zero.
Operational Amplifier
Announcements Tuesday’s Lecture next week is cancelled –October 18 th Assignment 4 is active, due in my mailbox by 5pm Friday (October 14 th ) Mid-term.
ECE 2006 Chapter 5: Operational Amplifiers. Differential Amplifier Not Practical Prior to IC Fabrication 2 Inputs, Output is A v *(V 1 - V 2 )
1 ECE 3336 Introduction to Circuits & Electronics MORE on Operational Amplifiers Spring 2015, TUE&TH 5:30-7:00 pm Dr. Wanda Wosik Set #14.
Department of Information Engineering357 Feedback Op amp golden rules Approximations: 1.Voltage difference between the two inputs is zero 2.Input draws.
Operational Amplifiers (Op Amps) Discussion D3.1.
Analog Circuit Design AVI SINGH. Amplifier What is an amplifier?
Introduction to Op Amps
Objective of Lecture Discuss analog computing and the application of 1 st order operational amplifier circuits. Derive the equations that relate the output.
Announcements Assignment 3 due now, or by tomorrow 5pm in my mailbox Assignment 4 posted, due next week –Thursday in class, or Friday 5pm in my mailbox.
ENTC 4350 BIOMEDICAL INSTRUMENTATION I BASIC DIFFERENTIAL AMPLIFIER.
Basic Block Diagram of Op-Amp
Introduction to Op Amp Circuits ELEC 121. April 2004ELEC 121 Op Amps2 Basic Op-Amp The op-amp is a differential amplifier with a very high open loop gain.
Topic 3: Op-Amp: Golden Rules of OP Amp 1.i in =0, no current flow into op amp. 2.V + =V - Typically one end of op amp is connected to ground, therefore,
Operational Amplifier
ECE 4991 Electrical and Electronic Circuits Chapter 8.
Operational Amplifiers. What is an Op Amp? High voltage gain IC with differential inputs –Designed to have characteristics near ideal Inexpensive, widely.
What is an Op Amp? Ideal Op Amps Applications Examples Lecture 9. Op Amps I 1.
St Columba’s High School Electricity and Electronics Op-amps.
ELECTRONICS PRIMER II.
1 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc., 2000 Fig. 6.1 A.
Summing Amplifier.
TECHNIQUES OF DC CIRCUIT ANALYSIS: SKEE 1023
ECA1212 Introduction to Electrical & Electronics Engineering Chapter 7: Operational Amplifier by Muhazam Mustapha, November 2011.
Digital to Analog Converters (DAC) 2 ©Paul Godin Created March 2008.
Operational Amplifier Basics Revision Question 4 An inverting comparator is shown in Figure 4. Calculate the switching threshold voltages and the hysteresis.
Operational Amplifier. What is an Operational Amplifier? 1)Differential amplifier - amplifies difference between two signals. 2)Can amplify very small.
Operational Amplifiers The operational amplifier, also know as an op amp, is essentially a voltage amplifier with an extremely high voltage gain. One of.
1 1.6 Op-Amp Basics Basic Op-Amp Op-amp equivalent circuit Practical (R i = high, R o = small)Ideal (R i =∞, R o = 0)
Operational Amplifiers Op Amps – a useful building block K. El-Ayat 11.
Applications of OP-AMP. Introduction Operational amplifier using IC's is inexpensive, versatile and easy to use. For this reason they are used not only.
1 9. Design of Multiple-input Op. Amp. Circuits 9.1Operational AmplifiersOperational Amplifiers 9.2Basic Operational Amplifier CircuitsBasic Operational.
Op-amp used as a summing amplifier or adder It is possible to apply more than one input signal to an inverting amplifier. This circuit will then add all.
OP-AMPs Op Amp is short for operational amplifier. An operational amplifier is modeled as a voltage controlled voltage source. An operational amplifier.
Practice Problems 1 P1.17: An FM radio receiver has an input resistance of 75 Ohm. The input signal provided by a distant transmitter is 5 µV rms, and.
An operational amplifier (Op-Amp) is a differential amplifier that amplifies the difference of voltages applied to its two input terminals (differential.
Electronics SL – Option C.3 HL – Option F.5. Operational Amplifier An amplifier is a device that takes a signal and makes its bigger. – An mp3 player.
BIOPOTENTIAL AMPLIFIERS
Figure 5.1 The eight-lead DIP package (top view).
Basic Block Diagram of Op-Amp
What is a DAC? A digital to analog converter (DAC) converts a digital signal to an analog voltage or current output DAC.
1.6 Op-Amp Basics Basic Op-Amp Practical (Ri = high , Ro = small)
SUMMING AMPLIFIER INTEGRATOR DIFFERENTIATOR COMPARATOR
Feedback No feedback : Open loop (used in comparators)
Examples of Negative Feedback Applications: A) Inverting Amplifiers
Non-linear Op-Amp Circuits Tim. Content 1 Introduction 2 Zero Crossing Detector – 2.1 Non-Inverting Zero Crossing Detector 2.1 Non-Inverting Zero Crossing.
In the name of allah.
Op Amps Intro to ECSE Analysis K. A. Connor Mobile Studio Project
Introduction to the OP AMP
Ch. 5 – Operational Amplifiers
Introduction to the OP AMP
Operational Amplifier (Op-Amp)-μA741
Ch. 5 – Operational Amplifiers
Ch. 5 – Operational Amplifiers
Ch. 5 – Operational Amplifiers
Presentation transcript:

Operation Amplifier

Golden Rules of OP Amp 1.i in =0, no current flow into op amp. 2.V + =V - Typically one end of op amp is connected to ground, therefore, V + =V - = 0V, virtual ground. Often V + is connected to ground to avoid stability problem.

Inverting Amplifier Feedback resistor, always to negative input

Summing Amplifier: Add Circuit If R S1 =R S2 =…=R SN =R S

Non-innverting Amplifier Feedback resistor, always to negative input

Voltage Follower Applications: Since the input resistance of an op amp  ∞, it will have no effect on the input.

Differential Amplifier Very useful if both signals are corrupted with noise: Electrocardiogram (EKG)