ENGR201 Lab 2019 Fall
Lab 7 Operational Amplifiers
Name: Jesse Duran
Email: Jiduran@fortlewis.edu
1. Operational Amplifiers
2. Operaional Amplifiers are used to amplify AC voltages as well as
comparitors between two input voltages. An AC voltage was supplied by a
function generator and the amplifed signal was graphed on the
oscilliscope. The purpose of this lab was to demonstrate understanding
of operational amplifers.
3. Materials and Methods:
Power supply
|
Op Amp LM741
|
100k ohm potentiometer
|
1M ohm potentiometer
|
Oscilliscope
|
Function Generator
|
| 5k resistor
|
4. Results (Your data/figure should have a caption. Figures should be
labeled/numbered.)

Figure 1: Results of VM with different circut configurations.

Figure 2: Max voltage rating of LM741 Op Amp.
Figure 3. Maximum amplication voltage from Task 3's toplology- inverting configuration.

Figure 4. Maximum amplification voltage from Task 3's topology-non inverting configuration.

Figure 5: Maximum amplification that could be achived using configuration from Task 4.

Figure 6: The voltage point that triggers change in the output was 3.2V.
5. Discussion
This lab demonstrated several configurations where Op Amps could be
used. There were configurations that were non-optimal to show
parameters that need to be met in order to use Op Amps corretly.
Overall the experiments in this lab helped to solidify the
characteristics of Op Amps.