Differential Amplifier Calculator

Calculate differential pair amplifier characteristics and CMRR

Circuit Parameters

Vcc (V)

Vee (V)

Tail Current (Iee) - mA

Collector Resistor (Rc) - Ohms

Transistor Beta (hFE)

Load Resistance (Rload) - Ohms

Differential Gain (Adm)192.3

Adm (dB)45.7 dB

Common Mode Gain (Acm)0.2500

Acm (dB)-12.0 dB

CMRR57.7 dB

Collector Current (each)1.00 mA

Transconductance (gm)38.46 mS

Differential Zin5.2 kΩ

Common Mode Zin1.3 kΩ

Output Impedance (Zout)5.0 kΩ

Slew Rate33.3 V/µs

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MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.