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?