Operational Amplifiers (Op-Amps)

Slides:

Advertisements

Similar presentations

1 Electronic Circuits OP AMPs. 2 Electronic Circuits Operational amplifiers are convenient building blocks that can be used to build amplifiers and filters.

Advertisements

Ref:080114HKNOperational Amplifier1 Lecture 1 Op-Amp Introduction of Operation Amplifier (Op- Amp) Analysis of ideal Op-Amp applications Comparison of.

Introduction to the 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.

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.

ECE 2006 Chapter 5: Operational Amplifiers. Differential Amplifier Not Practical Prior to IC Fabrication 2 Inputs, Output is A v *(V 1 - V 2 )

Chapter 2 – Operational Amplifiers Introduction Textbook CD

Operational Amplifiers

Operational Amplifiers (Op Amps) Discussion D3.1.

741 Op-Amp Circuit Section 8.1 (Razavi).

Chapter 8 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

OPERATIONAL AMPLIFIERS

Op-Amp Based Circuits Section 8.2. Topics Non-Inverting Amplifier Inverting Amplifier Integrator Differentiator.

Operational Amplifiers David Lomax Azeem Meruani Gautam Jadhav.

IDEAL OPERATIONAL AMPLIFIER AND OP-AMP CIRCUITS

Basic Block Diagram of Op-Amp

ECE 340 ELECTRONICS I OPERATIONAL AMPLIFIERS. OPERATIONAL AMPLIFIER THEORY OF OPERATION CHARACTERISTICS CONFIGURATIONS.

Analogue Electronics II EMT 212/4

Instrumentation for Scientists

Agenda and Notes Today, during class! 9:30 a.m. Boeing Space and Intelligence Systems (Matt and Matt) 4 extra credit assignments available at the bottom.

Operational Amplifier

Microprocessor Interface

Lecture 1 Op-Amp Introduction of Operation Amplifier (Op- Amp) Analysis of ideal Op-Amp applications Comparison of ideal and non-ideal Op-Amp Non-ideal.

ECE 4991 Electrical and Electronic Circuits Chapter 8.

EE445:Industrial Electronics. Outline Introduction Some application Comparators Integrators & Differentiators Summing Amplifier Digital-to-Analog (D/A)

Operational Amplifiers. What is an Op Amp? High voltage gain IC with differential inputs –Designed to have characteristics near ideal Inexpensive, widely.

Microelectronic Circuits, Sixth Edition Sedra/Smith Copyright © 2010 by Oxford University Press, Inc. C H A P T E R 02 Operational Amplifiers.

The signal conditioner -- changes the voltage Amplify Attenuate Filter.

Operational Amplifiers Instructor: Chia-Ming Tsai Electronics Engineering National Chiao Tung University Hsinchu, Taiwan, R.O.C.

What is an Op Amp? Ideal Op Amps Applications Examples Lecture 9. Op Amps I 1.

Operational Amplifiers AC Power CHAPTER 8. Figure 8.2, A voltage amplifier Figure 8.2 Simple voltage amplifier model Figure 8.3.

Module 4 Operational Amplifier

OPERATIONAL AMPLIFIERS. BASIC OP-AMP Symbol and Terminals A standard operational amplifier (op-amp) has; V out is the output voltage, V+ is the non-inverting.

EE 1270 Introduction to Electric Circuits Suketu Naik 0 EE 1270: Introduction to Electric Circuits Lecture 13: Operational Amplifiers Part 1 Chapter 5.

1 The Operational Amplifier continued The voltage follower provides unity gain, however, the output impedance is changed according to the o/p impedance.

1 Op-Amp Imperfections in The Linear Range of Operations Gain and Bandwidth Limitations  Ideal op amps have infinite open-loop gain magnitude (A oL is.

Basic Electronics Ninth Edition Basic Electronics Ninth Edition ©2002 The McGraw-Hill Companies Grob Schultz.

Lecture 4: Electrical Circuits

1 Tai-Cheng Lee Fall 2007 Operational Amplifiers Tai-Cheng Lee Electrical Engineering/GIEE, NTU.

0 Chap 2. Operational amplifiers (op-amps) Circuit symbol of an op-amp Widely used Often requires 2 power supplies + V Responds to difference between.

14-1 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Chapter Fourteen Nonideal Effects in Operational Amplifier Circuits.

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.

E E 2315 Lecture 08 - Introduction to Operational Amplifiers.

Operational amplifier. Definition The operational amplifier is a linear device for general purpose that features the managing signals from f = 0 Hz to.

For Third year Biophysics Special Students. Prepared by: Abdo A. Elfiky. Assistant Lecturer, Biophysics Department, Faculty of Science, Cairo University.

CONSTANT-GAIN MULTIPLIER CONTROLLED SOURCES INSTRUMENTATION AMPLIFIER

1 Operational Amplifiers n Ideal Op-Amp –input terminals –differential gain, open-loop gain.

OP-AMPs Op Amp is short for operational amplifier. An operational amplifier is modeled as a voltage controlled voltage source. An operational amplifier.

Instrumentation Amplifier

ECE201 Lect-131 Loop Analysis (7.8) Circuits with Op-Amps (3.3) Dr. Holbert October 9, 2001.

Analogue Electronics Higher Physics Unit 2 Electricity And Electronics Introduction to Op-Amps.

1 CHAPTER 20 OPERATIONAL AMPLIFIERS (OP-AMPS). 2 Introduction to operational amplifiers Symbol and Terminals.

PRESENTATION ON:  Voltage Amplifier Presentation made by: GOSAI VIVEK ( )

OPERATIONAL AMPLIFIERS + - Presented by D.Satishkumar Asst. Professor, Electrical & Electronics Engineering

1 Operational Amplifiers 1. 2 Outlines Ideal & Non-ideal OP Amplifier Inverting Configuration Non-inverting Configuration Difference Amplifiers Effect.

Differential voltage-gain device that amplifies the difference between the voltages existing at its two input terminal. An instrumentation (or instrumentational)

CHAPTER 20 OPERATIONAL AMPLIFIERS (OP-AMPS). Introduction to operational amplifiers Symbol and Terminals.

Ref:080114HKNOperational Amplifier1 Op-Amp Properties (1)Infinite Open Loop gain -The gain without feedback -Equal to differential gain -Zero common-mode.

Module 2 Operational Amplifier Basics

Op-Amp (Operational Amplifier)

ELEC I.G.A.I.JAYAWEERA PS/2014/134. Intro ducti on What is an Operational Amplifier?

Operational amplifier

Operational Amplifiers

INSTITUTE & TECHNOLOGY

Department of CNET Electronic Circuit II

Department of CNET Electronic Circuit II

Presentation transcript:

Operational Amplifiers (Op-Amps)

Operational Amplifier (Op-Amp) Not a discrete device (resistor, cap, ind, diode, transistor etc.) IC ! 2-input terminals Inverting and non-inverting Output terminal Two supply terminals Inexpensive – yet very useful in instrumentation applications We will only consider ideal op-amps !

Operational Amplifiers (Op-Amps)

Ideal Op-Amps 5 characteristics Infinite open-loop voltage gain Infinite input impedance Zero output impedance Infinite bandwidth Zero input voltage offset

A Simple Model for the Op-Amp Very High Gain amplifier with a high input and low output resistance ! AOL: “Open-Loop” Gain (105- 107) RIN: input resistance (Mohms) ROUT: Output Resistance (10s of ohms)

Input Current (IN) is zero ! Ideal Op-Amps “Golden Rules” Input currents = 0 Difference in input voltages = 0 Input Current (IN) is zero ! V+=V-

Ideal Op-Amps Analysis Procedure Calculate the input voltage Write node equation at op-amp input to find the output voltage

Inverting Amplifier Since Ia = 0, I1 = If Vb = 0 Va = 0 Find the voltage gain Vo/Vi. Calculate the input voltage Write node equation at op-amp input to find the output voltage

Non-Inverting Amplifier Since Ia = 0, I1 = If Vb = Vi Va = Vi Find the voltage gain Vo/Vi. Calculate the input voltage Write node equation at op-amp input to find the output voltage

Integrator By KVL, Vout = –VC

Differentiator

Two-Stage Amplifier Gain = Vo1/Vi Gain = Vo2/Vo1 Total Gain = (Vo1/Vi) (Vo2/Vo1) = Vo2/Vi

Example

Example

Work this Example!_________