Physics 123: Homework 3: Op Amps I

Size: px
Start display at page:

Download "Physics 123: Homework 3: Op Amps I"

Transcription

1 P123 HW 3: op amps I 1 Physics 123: Homework 3: Op Amps I Total points: 20 (plus 3 optional); due Monday, Feb. 23, 2015 REV 0 1 ; February 14, 2015 Contents 1 Bidirectional Current Source (1 point) 1 2 Odd Summing Circuit (3 points) 2 3 V to I(4 points, total) Choose An Op Amp (2 points) Design the Circuit (2 points) Bad Circuits? (5 points) 4 5 Differential Amp (4 points) Gain (1/2 point) (quasi-) differential input 1 point Hold non-inverting input (B) fixed: Hold inverting. input (A) fixed common-mode input (1 1/2 points) A question about input impedances 1 point Wien Bridge(3 points) Why is the lamp needed? (1/2 point) Why, when everything s working right, does the circuit deliver a clean sinewave? (1/2 point) Adjustments: (2 points) frequency amplitude Designing a Wien Bridge Circuit (optional: 3 points) Question: Links to Datasheets Contents Linksto Op AmpDatasheets Bidirectional Current Source (1 point) Show how to use a current-limiting diode, like the one you used in the tail of Lab 5 s difference amp (1N5294: really an FET), to make a bidirectional 2-terminal current source. Hint: a bridge circuit like the one familiar to you from power supplies can help. A sketchy data sheet describing this part appears at the end of these HW papers. Question: voltage limit With your additional circuitry, what is the minimum voltage across the bidirectional current source that will permit it to work properly? (See sketchy data sheet for the 1N5294.) 1 Revisions: cut table of recommended op amps as distracting (2/14).

2 P123 HW 3: op amps I 2 2 Odd Summing Circuit (3 points) Suppose you would like to sum the signals provided by two transducers, giving the two transducers equal full-scale weights. The summed output is to drive an A/D, and the range of that device defines the permitted output range for your summer. We will assume the transducers provide DC signals of just one polarity, as stated below. Here are the relevant specifications: A/D input range: 0 to +2.5V signal source A: signal range: 0 to +0.5V output impedance: 10MΩ signal source B: signal range: 0 to -1mA (current sink) output impedance: 10MΩ output voltage compliance: 0.1V

3 P123 HW 3: op amps I 3 3 Vto I(4 points, total) Your task, here, is to use an op amp to convert a voltage in the range 0 to +10V into a current, sourced from a +10V positive supply, in the range 0 to 100mA. You may use either an LMH6645 op amp or an LM358 (partial data sheets attached). Don t read all this data sheet material, by the way. Instead, decide first what are the few relevant specs (or one spec), then find that specification. We offer partial data sheets for two op amps but note: only one of thosetwo op amps can do the job. And here s a hint: we re proposing two single-supply op amps. In general, these devices are good at handling inputs close to the negative supply, on input and output; some can go close to the positive supply as well. Look closely at these specifications. Here are a couple of requirements: use just one supply: +10V. Let your current source work up to at least +8V (its output voltage compliance should be 0 to +8V, to say this in jargon). 3.1 Choose An Op Amp (2 points) Which op amp do you choose, and why? (You will need to sketch your circuit before you re likely to be able to answer this question.) 3.2 Design the Circuit (2 points) Design the circuit, using the op amp of your choice. Among other tasks, check whether the op amp you choose can put out 100mA. If not, provide an appropriate circuit remedy.

4 P123 HW 3: op amps I 4 4 BadCircuits? (5 points) On the next two pages you will find some bad circuits, and a few OK ones mixed in. Tell us briefly what s wrong with the bad ones, and how to fix them. Sometimes the fix itself will be a sufficient answer. Figure 1: bad circuits: I

5 P123 HW 3: op amps I 5 (More bad? circuits) Figure 2: bad circuits: II

6 P123 HW 3: op amps I 6 5 Differential Amp (4 points) Here is a standard differential amp made with an op amp. Figure 3: diff amp 5.1 Gain (1/2 point) First, what is the circuit s differential gain? Input impedances What is the input impedance at each of the circuit s input terminals (not the op amp s terminals, n.b.), for two cases 5.2 (quasi-) differential input 1 point Apply the signals to one input terminal at a time, while the other amp input sits still: Hold non-inverting input (B) fixed: Assume that you apply the signal at the R that feeds the inverting terminal, while the other input sits still (such an arrangement in fact mixes a little common-mode signal with the differential signal; you could easily figure how much, if you were so inclined!) Hold inverting. input (A) fixed :

7 P123 HW 3: op amps I common-mode input (1 1/2 points) 5.4 A question about input impedances 1 point If you got the answer we hope you got for the two input impedances differential and commonmode then you discovered a happy fact, a fact that helps a diff amp to do what it s built to do, viz., deliver good CMRR. Please explain, if you can, the relation between CMRR and the input impedances. 6 WienBridge(3 points) Here are some questions designed to help you admire this ingenious circuit: 6.1 Why is the lamp needed? (1/2 point) Why not use a fixed resistor with R R FEEDBACK 2, to set the amplifier s gain? 6.2 Why, when everything s working right, does the circuit deliver a clean sinewave? (1/2 point) Hint: Mr. Fourier knows!

8 P123 HW 3: op amps I Adjustments: (2 points) frequency To change the sine s frequency, what should you change? amplitude To change the sine s amplitude, what should you change? (This one is hard; please justify your answer briefly.) 7 Designing a Wien Bridge Circuit (optional: 3 points) Below is an I vs V plot for a particular #344 lamp. Figure 4: I vs V for #344 lamp

9 P123 HW 3: op amps I Question: What R f eedback value would you choose, to get an output amplitude of about 9V peak-to-peak? (One could answer this experimentally but we d like to see you calculate the result.) Notes: it s temperature that changes the lamp s resistance, as you know; the plot above shows DC values (Paul and I just watched I and V on two DVM s, and wrote down the pairs of readings); since the lamp responds rather slowly to heating by the sinusoidal waveform, it is the RMS I and V values that do the job: these heat the lamp the same way as the corresponding DC values we have plotted. For example, whatever I we found at 1.0V DC is the I RMS we would see for a 1.0V RMS sine wave about 1.4V peak. the relevant resistance value that we should take from the plot is not the local slope (the incremental resistance), but the average or overall relation between I and V at the operating amplitude (simpler, really). 8 Links to Datasheets 8.1 Contents Current-limiting diode LF411 op amp data LMH6645 op amp data LM358 op amp data

10 P123 HW 3: op amps I 10 Sketchy Data Sheet Figure 5: Current-limiting diode: 1N Links to Op Amp Datasheets Datasheet for 3 Op Amps We re not asking you to read through these long documents. Instead, we re hoping you ll make a quick hunt for a single specification. LF411: LMH LM358: hw3 feb15.tex; February 14, 2015

University of North Carolina, Charlotte Department of Electrical and Computer Engineering ECGR 3157 EE Design II Fall 2009

University of North Carolina, Charlotte Department of Electrical and Computer Engineering ECGR 3157 EE Design II Fall 2009 University of North Carolina, Charlotte Department of Electrical and Computer Engineering ECGR 3157 EE Design II Fall 2009 Lab 1 Power Amplifier Circuits Issued August 25, 2009 Due: September 11, 2009

More information

Physics S123 HW 3: Bipolar Transistors I

Physics S123 HW 3: Bipolar Transistors I S123 HW 3: Bipolar Transistors I 1 Physics S123 HW 3: Bipolar Transistors I Total Points: 18 REV 0; June 27, 2008. DUE Thursday, July 3, 2008 If a question baffles you, email one of us. The fault may lie

More information

Laboratory 6. Lab 6. Operational Amplifier Circuits. Required Components: op amp 2 1k resistor 4 10k resistors 1 100k resistor 1 0.

Laboratory 6. Lab 6. Operational Amplifier Circuits. Required Components: op amp 2 1k resistor 4 10k resistors 1 100k resistor 1 0. Laboratory 6 Operational Amplifier Circuits Required Components: 1 741 op amp 2 1k resistor 4 10k resistors 1 100k resistor 1 0.1 F capacitor 6.1 Objectives The operational amplifier is one of the most

More information

EE 368 Electronics Lab. Experiment 10 Operational Amplifier Applications (2)

EE 368 Electronics Lab. Experiment 10 Operational Amplifier Applications (2) EE 368 Electronics Lab Experiment 10 Operational Amplifier Applications (2) 1 Experiment 10 Operational Amplifier Applications (2) Objectives To gain experience with Operational Amplifier (Op-Amp). To

More information

ME 365 EXPERIMENT 7 SIGNAL CONDITIONING AND LOADING

ME 365 EXPERIMENT 7 SIGNAL CONDITIONING AND LOADING ME 365 EXPERIMENT 7 SIGNAL CONDITIONING AND LOADING Objectives: To familiarize the student with the concepts of signal conditioning. At the end of the lab, the student should be able to: Understand the

More information

EE 210: CIRCUITS AND DEVICES

EE 210: CIRCUITS AND DEVICES EE 210: CIRCUITS AND DEVICES OPERATIONAL AMPLIFIERS PART II This is the second of two laboratory sessions that provide an introduction to the op amp. In this session you will study three amplifiers designs:

More information

Operational Amplifiers. Boylestad Chapter 10

Operational Amplifiers. Boylestad Chapter 10 Operational Amplifiers Boylestad Chapter 10 DC-Offset Parameters Even when the input voltage is zero, an op-amp can have an output offset. The following can cause this offset: Input offset voltage Input

More information

ECE3204 D2015 Lab 1. See suggested breadboard configuration on following page!

ECE3204 D2015 Lab 1. See suggested breadboard configuration on following page! ECE3204 D2015 Lab 1 The Operational Amplifier: Inverting and Non-inverting Gain Configurations Gain-Bandwidth Product Relationship Frequency Response Limitation Transfer Function Measurement DC Errors

More information

Intro To Engineering II for ECE: Lab 7 The Op Amp Erin Webster and Dr. Jay Weitzen, c 2014 All rights reserved.

Intro To Engineering II for ECE: Lab 7 The Op Amp Erin Webster and Dr. Jay Weitzen, c 2014 All rights reserved. Lab 7: The Op Amp Laboratory Objectives: 1) To introduce the operational amplifier or Op Amp 2) To learn the non-inverting mode 3) To learn the inverting mode 4) To learn the differential mode Before You

More information

EE 210 Lab Exercise #5: OP-AMPS I

EE 210 Lab Exercise #5: OP-AMPS I EE 210 Lab Exercise #5: OP-AMPS I ITEMS REQUIRED EE210 crate, DMM, EE210 parts kit, T-connector, 50Ω terminator, Breadboard Lab report due at the ASSIGNMENT beginning of the next lab period Data and results

More information

Laboratory 9. Required Components: Objectives. Optional Components: Operational Amplifier Circuits (modified from lab text by Alciatore)

Laboratory 9. Required Components: Objectives. Optional Components: Operational Amplifier Circuits (modified from lab text by Alciatore) Laboratory 9 Operational Amplifier Circuits (modified from lab text by Alciatore) Required Components: 1x 741 op-amp 2x 1k resistors 4x 10k resistors 1x l00k resistor 1x 0.1F capacitor Optional Components:

More information

The measurement of loop gain in feedback seismometers Brett M. Nordgren April 9, 1999 Rev.

The measurement of loop gain in feedback seismometers Brett M. Nordgren  April 9, 1999 Rev. Introduction The measurement of loop gain in feedback seismometers Brett M. Nordgren http://bnordgren.org/contactb.html April 9, 1999 Rev. October 5, 2004 In reading the messages coming through PSN-L,

More information

ESE 150 Lab 04: The Discrete Fourier Transform (DFT)

ESE 150 Lab 04: The Discrete Fourier Transform (DFT) LAB 04 In this lab we will do the following: 1. Use Matlab to perform the Fourier Transform on sampled data in the time domain, converting it to the frequency domain 2. Add two sinewaves together of differing

More information

Assume availability of the following components to DESIGN and DRAW the circuits of the op. amp. applications listed below:

Assume availability of the following components to DESIGN and DRAW the circuits of the op. amp. applications listed below: ========================================================================================== UNIVERSITY OF SOUTHERN MAINE Dept. of Electrical Engineering TEST #3 Prof. M.G.Guvench ELE343/02 ==========================================================================================

More information

C H A P T E R 02. Operational Amplifiers

C H A P T E R 02. Operational Amplifiers C H A P T E R 02 Operational Amplifiers The Op-amp Figure 2.1 Circuit symbol for the op amp. Figure 2.2 The op amp shown connected to dc power supplies. The Ideal Op-amp 1. Infinite input impedance 2.

More information

Physics 123: Homework 4: Op Amps II

Physics 123: Homework 4: Op Amps II P123 HW 4: op amps II 1 Physics 123: Homework 4: Op Amps II Total points: 23.5; DUE Monday, Mar. 2, 2015 Contents 1 Review?: Capacitive coupling (5 pts) 2 1.1 Idealized next stage: R INX =, C INX =0.........

More information

BME/ISE 3512 Bioelectronics. Laboratory Five - Operational Amplifiers

BME/ISE 3512 Bioelectronics. Laboratory Five - Operational Amplifiers BME/ISE 3512 Bioelectronics Laboratory Five - Operational Amplifiers Learning Objectives: Be familiar with the operation of a basic op-amp circuit. Be familiar with the characteristics of both ideal and

More information

UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering

UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering EXPERIMENT 5 GAIN-BANDWIDTH PRODUCT AND SLEW RATE OBJECTIVES In this experiment the student will explore two

More information

Op-amp characteristics Operational amplifiers have several very important characteristics that make them so useful:

Op-amp characteristics Operational amplifiers have several very important characteristics that make them so useful: Operational Amplifiers A. Stolp, 4/22/01 rev, 2/6/12 An operational amplifier is basically a complete high-gain voltage amplifier in a small package. Op-amps were originally developed to perform mathematical

More information

BME 3512 Bioelectronics Laboratory Five - Operational Amplifiers

BME 3512 Bioelectronics Laboratory Five - Operational Amplifiers BME 351 Bioelectronics Laboratory Five - Operational Amplifiers Learning Objectives: Be familiar with the operation of a basic op-amp circuit. Be familiar with the characteristics of both ideal and real

More information

INDIANA UNIVERSITY, DEPT. OF PHYSICS, P400/540 LABORATORY FALL Laboratory #6: Operational Amplifiers

INDIANA UNIVERSITY, DEPT. OF PHYSICS, P400/540 LABORATORY FALL Laboratory #6: Operational Amplifiers INDIANA UNIVERSITY, DEPT. OF PHYSICS, P400/540 LABORATORY FALL 008 Laboratory #: Operational Amplifiers Goal: Study the use of the operational amplifier in a number of different configurations: inverting

More information

ESE 150 Lab 04: The Discrete Fourier Transform (DFT)

ESE 150 Lab 04: The Discrete Fourier Transform (DFT) LAB 04 In this lab we will do the following: 1. Use Matlab to perform the Fourier Transform on sampled data in the time domain, converting it to the frequency domain 2. Add two sinewaves together of differing

More information

School of Sciences. ELECTRONICS II ECE212A 2 nd Assignment

School of Sciences. ELECTRONICS II ECE212A 2 nd Assignment School of Sciences SPRING SEMESTER 2010 INSTRUCTOR: Dr Konstantinos Katzis COURSE / SECTION: ECE212N COURSE TITLE: Electronics II OFFICE RM#: 124 (1 st floor) OFFICE TEL#: 22713296 OFFICE HOURS: Monday

More information

DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139

DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139 DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 019.101 Introductory Analog Electronics Laboratory Laboratory No. READING ASSIGNMENT

More information

Operational Amplifiers

Operational Amplifiers Operational Amplifiers Reading Horowitz & Hill handout Notes, Chapter 9 Introduction and Objective In this lab we will examine op-amps. We will look at a few of their vast number of uses and also investigate

More information

Prelab 10: Differential Amplifiers

Prelab 10: Differential Amplifiers Name: Lab Section: Prelab 10: Differential Amplifiers For this lab, assume all NPN transistors are identical 2N3904 BJTs and all PNP transistors are identical 2N3906 BJTs. Component I S (A) V A (V) 2N3904

More information

Group: Names: voltage calculated measured V out (w/o R 3 ) V out (w/ R 3 )

Group: Names: voltage calculated measured V out (w/o R 3 ) V out (w/ R 3 ) 6.2 Laboratory Procedure / Summary Sheet Group: Names: An op amp requires connection to two different voltage levels from an external power supply, usually 15V and -15V, both of which can be provided by

More information

EE431 Lab 1 Operational Amplifiers

EE431 Lab 1 Operational Amplifiers Feb. 10, 2015 Report all measured data and show all calculations Introduction The purpose of this laboratory exercise is for the student to gain experience with measuring and observing the effects of common

More information

ECE Lab #4 OpAmp Circuits with Negative Feedback and Positive Feedback

ECE Lab #4 OpAmp Circuits with Negative Feedback and Positive Feedback ECE 214 Lab #4 OpAmp Circuits with Negative Feedback and Positive Feedback 20 February 2018 Introduction: The TL082 Operational Amplifier (OpAmp) and the Texas Instruments Analog System Lab Kit Pro evaluation

More information

UNIVERSITI MALAYSIA PERLIS

UNIVERSITI MALAYSIA PERLIS UNIVERSITI MALAYSIA PERLIS ANALOG ELECTRONICS II EMT 212 2009/2010 EXPERIMENT # 3 OP-AMP (OSCILLATORS) 1 1. OBJECTIVE: 1.1 To demonstrate the Wien bridge oscillator 1.2 To demonstrate the RC phase-shift

More information

1. An engineer measures the (step response) rise time of an amplifier as. Estimate the 3-dB bandwidth of the amplifier. (2 points)

1. An engineer measures the (step response) rise time of an amplifier as. Estimate the 3-dB bandwidth of the amplifier. (2 points) Exam 1 Name: Score /60 Question 1 Short Takes 1 point each unless noted otherwise. 1. An engineer measures the (step response) rise time of an amplifier as. Estimate the 3-dB bandwidth of the amplifier.

More information

Başkent University Department of Electrical and Electronics Engineering EEM 311 Electronics II Experiment 8 OPERATIONAL AMPLIFIERS

Başkent University Department of Electrical and Electronics Engineering EEM 311 Electronics II Experiment 8 OPERATIONAL AMPLIFIERS Başkent University Department of Electrical and Electronics Engineering EEM 311 Electronics II Experiment 8 Objectives: OPERATIONAL AMPLIFIERS 1.To demonstrate an inverting operational amplifier circuit.

More information

DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139

DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 02139 DEPARTMENT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE MASSACHUSETTS INSTITUTE OF TECHNOLOGY CAMBRIDGE, MASSACHUSETTS 019 Spring Term 00.101 Introductory Analog Electronics Laboratory Laboratory No.

More information

Homework Assignment 07

Homework Assignment 07 Homework Assignment 07 Question 1 (Short Takes). 2 points each unless otherwise noted. 1. A single-pole op-amp has an open-loop low-frequency gain of A = 10 5 and an open loop, 3-dB frequency of 4 Hz.

More information

CHARACTERIZATION OF OP-AMP

CHARACTERIZATION OF OP-AMP EXPERIMENT 4 CHARACTERIZATION OF OP-AMP OBJECTIVES 1. To sketch and briefly explain an operational amplifier circuit symbol and identify all terminals. 2. To list the amplifier stages in a typical op-amp

More information

ECE ECE285. Electric Circuit Analysis I. Spring Nathalia Peixoto. Rev.2.0: Rev Electric Circuits I

ECE ECE285. Electric Circuit Analysis I. Spring Nathalia Peixoto. Rev.2.0: Rev Electric Circuits I ECE285 Electric Circuit Analysis I Spring 2014 Nathalia Peixoto Rev.2.0: 140124. Rev 2.1. 140813 1 Lab reports Background: these 9 experiments are designed as simple building blocks (like Legos) and students

More information

An input resistor suppresses noise and stray pickup developed across the high input impedance of the op amp.

An input resistor suppresses noise and stray pickup developed across the high input impedance of the op amp. When you have completed this exercise, you will be able to operate a voltage follower using dc voltages. You will verify your results with a multimeter. O I The polarity of V O is identical to the polarity

More information

Instructions for the final examination:

Instructions for the final examination: School of Information, Computer and Communication Technology Sirindhorn International Institute of Technology Thammasat University Practice Problems for the Final Examination COURSE : ECS304 Basic Electrical

More information

In-Class Exercises for Lab 2: Input and Output Impedance

In-Class Exercises for Lab 2: Input and Output Impedance In-Class Exercises for Lab 2: Input and Output Impedance. What is the output resistance of the output device below? Suppose that you want to select an input device with which to measure the voltage produced

More information

Chapter 3, Sections Electrical Filters

Chapter 3, Sections Electrical Filters Chapter 3, Sections 3.2.4-3.2.5 Electrical Filters Signals DC and AC Components - Many signals can be constructed as sums of AC and DC components: 2.5 2 1.5 2 1.5 1.5 1 2 3 4 1.5 -.5-1 1 2 3 4 = + 2.5

More information

What is an Op-Amp? The Surface

What is an Op-Amp? The Surface What is an Op-Amp? The Surface An Operational Amplifier (Op-Amp) is an integrated circuit that uses external voltage to amplify the input through a very high gain. We recognize an Op-Amp as a massproduced

More information

Laboratory 8 Operational Amplifiers and Analog Computers

Laboratory 8 Operational Amplifiers and Analog Computers Laboratory 8 Operational Amplifiers and Analog Computers Introduction Laboratory 8 page 1 of 6 Parts List LM324 dual op amp Various resistors and caps Pushbutton switch (SPST, NO) In this lab, you will

More information

OPERATIONAL AMPLIFIERS (OP-AMPS) II

OPERATIONAL AMPLIFIERS (OP-AMPS) II OPERATIONAL AMPLIFIERS (OP-AMPS) II LAB 5 INTRO: INTRODUCTION TO INVERTING AMPLIFIERS AND OTHER OP-AMP CIRCUITS GOALS In this lab, you will characterize the gain and frequency dependence of inverting op-amp

More information

using dc inputs. You will verify circuit operation with a multimeter.

using dc inputs. You will verify circuit operation with a multimeter. Op Amp Fundamentals using dc inputs. You will verify circuit operation with a multimeter. FACET by Lab-Volt 77 Op Amp Fundamentals O circuit common. a. inverts the input voltage polarity. b. does not invert

More information

55:041 Electronic Circuits The University of Iowa Fall Exam 3. Question 1 Unless stated otherwise, each question below is 1 point.

55:041 Electronic Circuits The University of Iowa Fall Exam 3. Question 1 Unless stated otherwise, each question below is 1 point. Exam 3 Name: Score /65 Question 1 Unless stated otherwise, each question below is 1 point. 1. An engineer designs a class-ab amplifier to deliver 2 W (sinusoidal) signal power to an resistive load. Ignoring

More information

Homework Assignment 07

Homework Assignment 07 Homework Assignment 07 Question 1 (Short Takes). 2 points each unless otherwise noted. 1. A single-pole op-amp has an open-loop low-frequency gain of A = 10 5 and an open loop, 3-dB frequency of 4 Hz.

More information

Electronics and Instrumentation Name ENGR-4220 Spring 1999 Section Experiment 4 Introduction to Operational Amplifiers

Electronics and Instrumentation Name ENGR-4220 Spring 1999 Section Experiment 4 Introduction to Operational Amplifiers Experiment 4 Introduction to Operational Amplifiers Purpose: Become sufficiently familiar with the operational amplifier (op-amp) to be able to use it with a bridge circuit output. We will need this capability

More information

Differential Amplifier : input. resistance. Differential amplifiers are widely used in engineering instrumentation

Differential Amplifier : input. resistance. Differential amplifiers are widely used in engineering instrumentation Differential Amplifier : input resistance Differential amplifiers are widely used in engineering instrumentation Differential Amplifier : input resistance v 2 v 1 ir 1 ir 1 2iR 1 R in v 2 i v 1 2R 1 Differential

More information

Class #8: Experiment Diodes Part I

Class #8: Experiment Diodes Part I Class #8: Experiment Diodes Part I Purpose: The objective of this experiment is to become familiar with the properties and uses of diodes. We used a 1N914 diode in two previous experiments, but now we

More information

When you have completed this exercise, you will be able to relate the gain and bandwidth of an op amp

When you have completed this exercise, you will be able to relate the gain and bandwidth of an op amp Op Amp Fundamentals When you have completed this exercise, you will be able to relate the gain and bandwidth of an op amp In general, the parameters are interactive. However, in this unit, circuit input

More information

Operational Amplifiers

Operational Amplifiers Objective Operational Amplifiers Understand the basics and general concepts of operational amplifier (op amp) function. Build and observe output of a comparator and an amplifier (inverting amplifier).

More information

California University of Pennsylvania. Department of Applied Engineering & Technology. Electrical / Computer Engineering Technology

California University of Pennsylvania. Department of Applied Engineering & Technology. Electrical / Computer Engineering Technology California University of Pennsylvania Department of Applied Engineering & Technology Electrical / Computer Engineering Technology EET 215: Introduction to Instrumentations Lab No.5b Operational Amplifier

More information

Lab 2 Operational Amplifier

Lab 2 Operational Amplifier Lab 2 Operational Amplifier Last Name: First Name: Student Number: Lab Section: Monday Tuesday Wednesday Thursday Friday TA Signature: Note: The Pre-Lab section must be completed prior to the lab session.

More information

DESIGN OF AN ANALOG FIBER OPTIC TRANSMISSION SYSTEM

DESIGN OF AN ANALOG FIBER OPTIC TRANSMISSION SYSTEM DESIGN OF AN ANALOG FIBER OPTIC TRANSMISSION SYSTEM OBJECTIVE To design and build a complete analog fiber optic transmission system, using light emitting diodes and photodiodes. INTRODUCTION A fiber optic

More information

EE 3305 Lab I Revised July 18, 2003

EE 3305 Lab I Revised July 18, 2003 Operational Amplifiers Operational amplifiers are high-gain amplifiers with a similar general description typified by the most famous example, the LM741. The LM741 is used for many amplifier varieties

More information

Section 4: Operational Amplifiers

Section 4: Operational Amplifiers Section 4: Operational Amplifiers Op Amps Integrated circuits Simpler to understand than transistors Get back to linear systems, but now with gain Come in various forms Comparators Full Op Amps Differential

More information

Basic operational amplifier circuits In this lab exercise, we look at a variety of op-amp circuits. Note that this is a two-period lab.

Basic operational amplifier circuits In this lab exercise, we look at a variety of op-amp circuits. Note that this is a two-period lab. Basic operational amplifier circuits In this lab exercise, we look at a variety of op-amp circuits. Note that this is a two-period lab. Prior to Lab 1. If it has been awhile since you last used the lab

More information

BENE 2163 ELECTRONIC SYSTEMS

BENE 2163 ELECTRONIC SYSTEMS UNIVERSITI TEKNIKAL MALAYSIA MELAKA FAKULTI KEJURUTERAAN ELEKTRONIK DAN KEJURUTERAAN KOMPUTER BENE 263 ELECTRONIC SYSTEMS LAB SESSION 3 WEIN BRIDGE OSCILLATOR Revised: February 20 Lab 3 Wien Bridge Oscillator

More information

The Operational Amplifier This lab is adapted from the Kwantlen Lab Manual

The Operational Amplifier This lab is adapted from the Kwantlen Lab Manual Name: Partner(s): Desk #: Date: Purpose The Operational Amplifier This lab is adapted from the Kwantlen Lab Manual The purpose of this lab is to examine the functions of operational amplifiers (op amps)

More information

CENG4480 Embedded System Development and Applications The Chinese University of Hong Kong Laboratory 1: Op Amp (I)

CENG4480 Embedded System Development and Applications The Chinese University of Hong Kong Laboratory 1: Op Amp (I) CENG4480 Embedded System Development and Applications The Chinese University of Hong Kong Laboratory 1: Op Amp (I) Student ID: 2018 Fall 1 Introduction This lab session introduces some very basic concepts

More information

ELC224 Final Review (12/10/2009) Name:

ELC224 Final Review (12/10/2009) Name: ELC224 Final Review (12/10/2009) Name: Select the correct answer to the problems 1 through 20. 1. A common-emitter amplifier that uses direct coupling is an example of a dc amplifier. 2. The frequency

More information

Experiments #7. Operational Amplifier part 1

Experiments #7. Operational Amplifier part 1 Experiments #7 Operational Amplifier part 1 1) Objectives: The objective of this lab is to study operational amplifier (op amp) and its applications. We will be simulating and building some basic op-amp

More information

Physics 303 Fall Module 4: The Operational Amplifier

Physics 303 Fall Module 4: The Operational Amplifier Module 4: The Operational Amplifier Operational Amplifiers: General Introduction In the laboratory, analog signals (that is to say continuously variable, not discrete signals) often require amplification.

More information

BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY

BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY Electronics Circuits II Laboratory (EEE 208) Simulation Experiment No. 02 Study of the Characteristics and Application of Operational Amplifier (Part B)

More information

Concepts to be Reviewed

Concepts to be Reviewed Introductory Medical Device Prototyping Analog Circuits Part 3 Operational Amplifiers, http://saliterman.umn.edu/ Department of Biomedical Engineering, University of Minnesota Concepts to be Reviewed Operational

More information

Lecture #4 Basic Op-Amp Circuits

Lecture #4 Basic Op-Amp Circuits Summer 2015 Ahmad El-Banna Faculty of Engineering Department of Electronics and Communications GEE336 Electronic Circuits II Lecture #4 Basic Op-Amp Circuits Instructor: Dr. Ahmad El-Banna Agenda Some

More information

EE 230 Lab Lab 9. Prior to Lab

EE 230 Lab Lab 9. Prior to Lab MOS transistor characteristics This week we look at some MOS transistor characteristics and circuits. Most of the measurements will be done with our usual lab equipment, but we will also use the parameter

More information

Designing Information Devices and Systems I Spring 2015 Homework 6

Designing Information Devices and Systems I Spring 2015 Homework 6 EECS 16A Designing Information Devices and Systems I Spring 2015 Homework 6 This homework is due March 19, 2015 at 5PM. Note that unless explicitly stated otherwise, you can assume that all op-amps in

More information

Lab: Operational Amplifiers

Lab: Operational Amplifiers Page 1 of 6 Laboratory Goals Familiarize students with Integrated Circuit (IC) construction on a breadboard Introduce the LM 741 Op-amp and its applications Design and construct an inverting amplifier

More information

Physics 120 Lab 6 (2018) - Field Effect Transistors: Ohmic Region

Physics 120 Lab 6 (2018) - Field Effect Transistors: Ohmic Region Physics 120 Lab 6 (2018) - Field Effect Transistors: Ohmic Region The field effect transistor (FET) is a three-terminal device can be used in two extreme ways as an active element in a circuit. One is

More information

Electronics EECE2412 Spring 2016 Exam #1

Electronics EECE2412 Spring 2016 Exam #1 Electronics EECE2412 Spring 2016 Exam #1 Prof. Charles A. DiMarzio Department of Electrical and Computer Engineering Northeastern University 18 February 2016 File:12140/exams/exam1 Name: : Row # : Seat

More information

Lecture 2 Analog circuits. Seeing the light..

Lecture 2 Analog circuits. Seeing the light.. Lecture 2 Analog circuits Seeing the light.. I t IR light V1 9V +V IR detection Noise sources: Electrical (60Hz, 120Hz, 180Hz.) Other electrical IR from lights IR from cameras (autofocus) Visible light

More information

Practice questions for BIOEN 316 Quiz 4 Solutions for questions from 2011 and 2012 are posted with their respective quizzes.

Practice questions for BIOEN 316 Quiz 4 Solutions for questions from 2011 and 2012 are posted with their respective quizzes. Practice questions for BIOEN 316 Quiz 4 Solutions for questions from 2011 and 2012 are posted with their respective quizzes. 1. [2011] When we talk about an ideal op-amp we usually make two assumptions.

More information

EE351 Laboratory Exercise 4 Field Effect Transistors

EE351 Laboratory Exercise 4 Field Effect Transistors Oct. 28, 2007, rev. July 26, 2009 Introduction The purpose of this laboratory exercise is for students to gain experience making measurements on Junction (JFET) to confirm mathematical models and to gain

More information

Exercise 6 AC voltage measurements average responding voltmeters

Exercise 6 AC voltage measurements average responding voltmeters Exercise 6 AC voltage measurements average responding voltmeters 1. Aim of the exercise The aim of the exercise is to familiarize students with the AC voltage measurements by means of rectified average

More information

R 1 R 2. (3) Suppose you have two ac signals, which we ll call signals A and B, which have peak-to-peak amplitudes of 30 mv and 600 mv, respectively.

R 1 R 2. (3) Suppose you have two ac signals, which we ll call signals A and B, which have peak-to-peak amplitudes of 30 mv and 600 mv, respectively. 29:128 Homework Problems 29:128 Homework 0 reference: Chapter 1 of Horowitz and Hill (1) In the circuit shown below, V in = 9 V, R 1 = 1.5 kω, R 2 = 5.6 kω, (a) Calculate V out (b) Calculate the power

More information

ENE/EIE 211 : Electronic Devices and Circuit Design II Lecture 1: Introduction

ENE/EIE 211 : Electronic Devices and Circuit Design II Lecture 1: Introduction ENE/EIE 211 : Electronic Devices and Circuit Design II Lecture 1: Introduction 1/14/2018 1 Course Name: ENE/EIE 211 Electronic Devices and Circuit Design II Credits: 3 Prerequisite: ENE/EIE 210 Electronic

More information

Operational Amplifiers

Operational Amplifiers Fundamentals of op-amp Operation modes Golden rules of op-amp Op-amp circuits Inverting & non-inverting amplifier Unity follower, integrator & differentiator Introduction An operational amplifier, or op-amp,

More information

Experiment 6: Biasing Circuitry

Experiment 6: Biasing Circuitry 1 Objective UNIVERSITY OF CALIFORNIA AT BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EE105 Lab Experiments Experiment 6: Biasing Circuitry Setting up a biasing

More information

Lab 6: Building a Function Generator

Lab 6: Building a Function Generator ECE 212 Spring 2010 Circuit Analysis II Names: Lab 6: Building a Function Generator Objectives In this lab exercise you will build a function generator capable of generating square, triangle, and sine

More information

University of Utah Electrical Engineering Department ECE 2100 Experiment No. 2 Linear Operational Amplifier Circuits II

University of Utah Electrical Engineering Department ECE 2100 Experiment No. 2 Linear Operational Amplifier Circuits II University of Utah Electrical Engineering Department ECE 2100 Experiment No. 2 Linear Operational Amplifier Circuits II Minimum required points = 51 Grade base, 100% = 85 points Recommend parts should

More information

PHYSICS 330 LAB Operational Amplifier Frequency Response

PHYSICS 330 LAB Operational Amplifier Frequency Response PHYSICS 330 LAB Operational Amplifier Frequency Response Objectives: To measure and plot the frequency response of an operational amplifier circuit. History: Operational amplifiers are among the most widely

More information

Operational Amplifiers: Part II

Operational Amplifiers: Part II 1. Introduction Operational Amplifiers: Part II The name "operational amplifier" comes from this amplifier's ability to perform mathematical operations. Three good examples of this are the summing amplifier,

More information

Dr. Charles Kim ELECTRONICS I. Lab 4 Op Amp II TRADITIONAL LAB

Dr. Charles Kim ELECTRONICS I. Lab 4 Op Amp II TRADITIONAL LAB ELECTRONICS I Lab 4 Op Amp II TRADITIONAL LAB A. Active Filters 1. Low Pass Filter 2. High Pass Filter 3. Band Pass Filter 4. Band Stop Filter MOBILE STUDIO LAB A. Active Filters Do we need explanation

More information

PHYS 536 The Golden Rules of Op Amps. Characteristics of an Ideal Op Amp

PHYS 536 The Golden Rules of Op Amps. Characteristics of an Ideal Op Amp PHYS 536 The Golden Rules of Op Amps Introduction The purpose of this experiment is to illustrate the golden rules of negative feedback for a variety of circuits. These concepts permit you to create and

More information

DIGITAL TO ANALOG AND ANALOG TO DIGITAL CONVERTER

DIGITAL TO ANALOG AND ANALOG TO DIGITAL CONVERTER NLOG & TELECOMMUNICTION ELECTONICS LOTOY EXECISE 5 Lab 6: DIGITL TO NLOG ND NLOG TO DIGITL CONVETE Goal nalyze the behavior of a 6-bit D/ converter. Evaluate linear and nonlinear errors, nonmonotonicy

More information

UNIT I. Operational Amplifiers

UNIT I. Operational Amplifiers UNIT I Operational Amplifiers Operational Amplifier: The operational amplifier is a direct-coupled high gain amplifier. It is a versatile multi-terminal device that can be used to amplify dc as well as

More information

29:128 Homework Problems

29:128 Homework Problems 29:128 Homework Problems Revised 22 Feb 2012 29:128 Homework 1 (15 points) references: Sections 1.6-1.7 & 4.8, Meyer Chapter 1 of Horowitz and Hill, 2nd Edition (1) In the circuit shown below, V in = 9

More information

EE 233 Circuit Theory Lab 2: Amplifiers

EE 233 Circuit Theory Lab 2: Amplifiers EE 233 Circuit Theory Lab 2: Amplifiers Table of Contents 1 Introduction... 1 2 Precautions... 1 3 Prelab Exercises... 2 3.1 LM348N Op-amp Parameters... 2 3.2 Voltage Follower Circuit Analysis... 2 3.2.1

More information

Total No. of Questions : 40 ] [ Total No. of Printed Pages : 7. March, Time : 3 Hours 15 Minutes ] [ Max. Marks : 90

Total No. of Questions : 40 ] [ Total No. of Printed Pages : 7. March, Time : 3 Hours 15 Minutes ] [ Max. Marks : 90 Code No. 40 Total No. of Questions : 40 ] [ Total No. of Printed Pages : 7 March, 2009 ELECTRONICS Time : 3 Hours 15 Minutes ] [ Max. Marks : 90 Note : i) The question paper has four Parts A, B, C & D.

More information

Laboratory #4: Solid-State Switches, Operational Amplifiers Electrical and Computer Engineering EE University of Saskatchewan

Laboratory #4: Solid-State Switches, Operational Amplifiers Electrical and Computer Engineering EE University of Saskatchewan Authors: Denard Lynch Date: Oct 24, 2012 Revised: Oct 21, 2013, D. Lynch Description: This laboratory explores the characteristics of operational amplifiers in a simple voltage gain configuration as well

More information

Objectives The purpose of this lab is build and analyze Differential amplifier based on NPN transistors.

Objectives The purpose of this lab is build and analyze Differential amplifier based on NPN transistors. 1 Lab 03: Differential Amplifier Total 30 points: 20 points for lab, 5 points for well-organized report, 5 points for immaculate circuit on breadboard NOTES: 1) Please use the basic current mirror from

More information

Op Amp Booster Designs

Op Amp Booster Designs Op Amp Booster Designs Although modern integrated circuit operational amplifiers ease linear circuit design, IC processing limits amplifier output power. Many applications, however, require substantially

More information

Objectives The purpose of this lab is build and analyze Differential amplifiers based on NMOS transistors (or NPN transistors).

Objectives The purpose of this lab is build and analyze Differential amplifiers based on NMOS transistors (or NPN transistors). 1 Lab 03: Differential Amplifiers (MOSFET) (20 points) NOTE: 1) Please use the basic current mirror from Lab01 for the second part of the lab (Fig. 3). 2) You can use the same chip as the basic current

More information

PHY 132 Summer 2000 LAB 9: LRC Circuit (Phases) 1

PHY 132 Summer 2000 LAB 9: LRC Circuit (Phases) 1 PHY 132 Summer 2000 LAB 9: LRC Circuit (Phases) 1 Introduction In this lab we will measure the phases (voltage vs current) for each component in a series LRC circuit. Theory L C V_in R Fig. 1 Generic series

More information

Let us consider the following block diagram of a feedback amplifier with input voltage feedback fraction,, be positive i.e. in phase.

Let us consider the following block diagram of a feedback amplifier with input voltage feedback fraction,, be positive i.e. in phase. P a g e 2 Contents 1) Oscillators 3 Sinusoidal Oscillators Phase Shift Oscillators 4 Wien Bridge Oscillators 4 Square Wave Generator 5 Triangular Wave Generator Using Square Wave Generator 6 Using Comparator

More information

Precision Rectifier Circuits

Precision Rectifier Circuits Precision Rectifier Circuits Rectifier circuits are used in the design of power supply circuits. In such applications, the voltage being rectified are usually much greater than the diode voltage drop,

More information

Positive Feedback and Oscillators

Positive Feedback and Oscillators Physics 3330 Experiment #5 Fall 2011 Positive Feedback and Oscillators Purpose In this experiment we will study how spontaneous oscillations may be caused by positive feedback. You will construct an active

More information

Lab 2: Capacitors. Integrator and Differentiator Circuits

Lab 2: Capacitors. Integrator and Differentiator Circuits Lab 2: Capacitors Topics: Differentiator Integrator Low-Pass Filter High-Pass Filter Band-Pass Filter Integrator and Differentiator Circuits The simple RC circuits that you built in a previous section

More information

Hello, and welcome to the TI Precision Labs video series discussing comparator applications. The comparator s job is to compare two analog input

Hello, and welcome to the TI Precision Labs video series discussing comparator applications. The comparator s job is to compare two analog input Hello, and welcome to the TI Precision Labs video series discussing comparator applications. The comparator s job is to compare two analog input signals and produce a digital or logic level output based

More information