Calculatorism

Op-Amp Inverting Amplifier Calculator

Compute inverting amplifier gain A_v = −R_f/R_in.

Input Data

Input Input resistor R_in.
Ω
Input Feedback resistor R_f.
Ω

Results

-10
A_v = −R_f/R_in = -10.000000

At a glance:Op-Amp Inverting Amplifier Calculator: enter parameters to compute results; complements related calculators.

Formula

A_v = − R_f / R_in

ideal op-amp, negative feedback

How to Use

  1. Enter input resistor R_in.
  2. Enter feedback resistor R_f.
  3. Get voltage gain A_v (negative = inverted).

Case Studies

R_in=1k, R_f=10k

A_v = −10.

FAQ

Input impedance?

Inverting input is virtual ground; input impedance ≈ R_in.

Related Tools

References

Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.

Found a problem with the results?

If this calculator's result is wrong, or you have any question about the calculation logic, please let us know. You are viewing:Op-Amp Inverting Amplifier Calculator（/physics/op-amp-inverting）。