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 v_o and inputs v_a, v_b).

2. For the circuit of figure 3 in this lab:

a) Find the input impedance to the right of V₁.

1.  

    
    

   b)  What is the output impedance of the amplifier circuit?

   
   

    

3. For the circuit of figure 4 in this lab:

1. 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?