4/25 Inverting Differentiator

        The purpose of this lab is to verify the function of inverting differentiator. We need to find the out voltage and input voltage through the experiment. Then, compare these values with the theoretical value.

1. Provide the input-output relation  for the circuit:

 the relation is showed in the photo.

2. Provide a schematic of the circuit you implemented:

The actual resistance we used in the lab is 665

3. Attach an image of the oscilloscope window for the 100 HZ sinusoidal input:

4. Attach an image of the oscilloscope window for the 250 HZ sinusoidal input

5. Attach an image of the oscilloscope window for the 500Hz sinusoidal input 

6. Provide a table showing the expected output voltage amplitudes

Summary

               In today's class, we introduce the definition of differentiator. A  differentiator is a circuit that is designed such that the output of the circuit is approximately directly proportional to the rate of change (the time derivative) of the input. An active differentiator includes some form of amplifier. A passive differentiator circuit is made of only resistors and capacitors.