Op-Amp differential Voltage Amplifier and Common Mode Rejection ratio (CMRR) Calculator

This CalcTown calculator calculates the output voltage and common mode rejection ratio of an Op-Amp circuit configuration which amplifies the difference of voltage applied to its two terminals.

Op-Amp differential Voltage Amplifier and Common Mode Rejection ratio (CMRR) Calculator

R₁

K-Ohm

R₂

K-Ohm

R₃

K-Ohm

R₄

K-Ohm

Input volatge at terminal 1 (v_I1)

Input volatge at terminal 2 (v_I2)

Result

Output Voltage

A_d

A_cm

CMRR

Click here to view image

where

the respective resistances are marked in the diagram above.

CMRR is the Common Mode Rejection Ratio.