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# ET 332 W3 Practical Op-Amps - Understanding Op Amp Parameters 1. Search the Internet for a LM741 datasheet. texas Instruments can be a good source....

ET322 W3

Please follow all of the directions. Show all work where it is needed. Submit as a Word doc all files that are needed to complete the assignment must be submitted al well Some portion of the assignment MUST be completed using the MulitSim program.

ET 332 W3 Practical Op-Amps – Understanding Op Amp Parameters 1. Search the Internet for a LM741 datasheet. texas Instruments can be a good source. 2. Answer the following questions: a. Given a signal with a peak voltage of 10V and a frequency of 2kHz, calculate the SR for Figure A.4, pg. 212. b. Given a total noise voltage of ent = 1mV, current noise In = 2pA/sqrt(Hz), and a source resistance Rs = 2kohms, calculate the voltage noise, Vn parameter. Requires solving for Vn in equation (A.3), pg. 207. c. Given that the maximum frequency without distortion fmax is de±ned as fmax = SR/2piVp, calculate SR with fmax = 3kHz, and Vp-p = 15v. d. Review the “LM741 datasheet” in your course materials and provide the following information: Supply voltage range Input O²set Voltage (typical) and (max) Large Signal Voltage Gain (min) and (typical) CMRR (typical) SVRR (typical) SR (typical) How many BJT’s comprise the internal circuitry?
Practical Op-Amps – Understanding Op Amp Parameters The purpose of this lab is to use Multisim to determine the slew rate of an op-amp using a virtual oscilloscope. Students will compare typical values of slew rate obtained from a data sheet to those measured in Multisim. An understanding of how to measure this practical limitation of op- amps will provide insight in how to choose the appropriate op-amp for a given application. 3. Watch video Week 3 – Op-Amp Slew Rate . 4. Construct an Op-Amp conFguration presented in the video in Multisim. 5. Use the datasheet of the Op-Amps to Fnd the slew rate and then use the Oscilloscope to measure the slew rate using: a. SR = max () 2. Use the Op-Amps given in the table to repeat step 3 and complete the table. Op-Amp Slew rate from Datasheet Measured Slew rate from simulation LM741 LM324 LM318 LM307 LM2904 LM224 o Take the screen shots of the Vout for slew rate measurements for each of the above Op-Amps. o Answer the following questions: a. What is a slew rate and explain how it helps in determining the type of Op-Amp for applications. b. How do you measure slew rate given the input and output voltage of an Op-Amp? What are the tools used to measure the slew rate? c. Does the measured values of the slew rate match the values from datasheet? If not, explain why they are di±erent? d. Explain the di±erences between the slewing phenomenon of di±erent ampliFer designs.
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ET 332 W3
Practical Op-Amps – Understanding Op Amp Parameters
1. Search the Internet for a LM741 datasheet. texas Instruments can be a good
source. 2. Answer the following questions:
a. Given a...

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