BasicInvertingAmplifier

EXAMPLE : If R1 = 1,000 Ohms and R2 = 10,000 Ohms, then gain is -(10,000/1,000) or -10.

This is one of the most common Op-Amp circuits. For a non-inverted output see the page on Non-Inverting Amplifiers.

Input is inverted at output.

Gain = -(R2 / R1)

R3 = (R1 R2) / (R1 + R2)