Inverting Op-Amp Gain Calculator

Inverting Op-Amp Gain Calculator

Calculate the ideal and non-ideal gain for an inverting op-amp.

Ideal Gain: \( A_{ideal} = -\frac{R_f}{R_{in}} \)    Non-Ideal Gain: \( A_{nonideal} = \frac{-\frac{R_f}{R_{in}}}{1 + \frac{1+\frac{R_f}{R_{in}}}{A_{OL}}} \)

Step 1: Enter Resistor Values and Open-Loop Gain

e.g., 4700 Ω

e.g., 1000 Ω

e.g., 100000

Formulas:
Ideal Gain: \( A_{ideal} = -\frac{R_f}{R_{in}} \)
Non-Ideal Gain: $$ A_{nonideal} = \frac{-\frac{R_f}{R_{in}}}{1 + \frac{1+\frac{R_f}{R_{in}}}{A_{OL}}} $$