April 21. Inverting Differentiator

Pre-Lab

Prediction

We determine the Vo, V1, V3 

and resistor and capacitor used in this lab

Lab measurements

For three different frequency we measure the Vout anc compare to the expected value.

 circuit

f=1kHz, A=1V, offset=0V, The display the waveforms for Vo A= 1.144V and Vin A=1V.

f=500Hz, A=1V, offset=0V, The display the waveforms for Vo A= 0.586V and Vin A=1V.

f=2kHz, A=1V, offset=0V, The display the waveforms for Vo A= 2.204V and Vin A=1V.


Summary:
 In this lab, we learned  the output voltage has a relationship respect to the time of the input to the circuit. With a higher frequency the the op amp will have a higher gain for the output, and with a lower frequency the op amp will have a lower gain for the input.
The percentage difference is quite small in this lab, no more than 9%, so we consider this lab is successful. The error may due to the opamp is non-ideal. so the experimental value is little bit off from we expected.