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Basic Op-Amp Circuits

 Summing Amplifier

  Summing amplifier circuit

Given:

R1 = 71 W, v1 = 1.7 V
R2 = 99 W, v2 = 1.8 V
R3 = 89 W, v3 = 2.2 V
Rf = 94 W

Find:

vo

Hint:

Output voltage of an op-amp summing circuit

Solution:

vo = 6.2 V


Notes & Instructions

Solve the op-amp problem on a separate sheet of paper. Click...

  • Hint to see a helpful equation.
  • Solution to see the answer(s)
  • Next to see the next problem in this series.
  • Quit to end this session.
Rf = value of the feedback resistance
Ri = value of the input resistance
Av = voltage gain
vi = ac voltage in
vo = ac voltage out
 

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015