EE 212 Lab
Prelab 7: Operational Amplifiers - Part 1
1. For the inverting, summing amplifier shown, find the voltage gain relationship (i.e., relationship between output vo and inputs va, vb).
2. For the circuit of figure 3 in this lab:
a) Find the input impedance to the right of V1.
b) What is the output impedance of the amplifier circuit?
3. For the circuit of figure 4 in this lab:
c) What is its output impedance of this circuit?