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 the 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 the lab:
  a) What is the voltage gain of this circuit?
b) What is the input impedance of this circuit?

c)  What is its output impedance of this circuit?