Common Mode Gain in MOSFET Amplifiers Formulas

Common Mode Gain is typically much smaller than the differential gain. Acm is the gain given to a voltage that appears on both input terminals with respect to the ground. And is denoted by A_cm. Common Mode Gain is usually measured using the Decibel for Noise. Note that the value of Common Mode Gain is always positive.

Formulas to find Common Mode Gain in MOSFET Amplifiers

fxCommon-Mode Gain of Controlled Source TransistorGo

List of variables in MOSFET Amplifiers formulas

fx Small Signal Go

fx Differential Input Signal Go

FAQ

What is the Common Mode Gain?

Common Mode Gain is typically much smaller than the differential gain. Acm is the gain given to a voltage that appears on both input terminals with respect to the ground. Common Mode Gain is usually measured using the Decibel for Noise. Note that the value of Common Mode Gain is always positive.

Can the Common Mode Gain be negative?

No, the Common Mode Gain, measured in Noise cannot be negative.

What unit is used to measure Common Mode Gain?

Common Mode Gain is usually measured using the Decibel[dB] for Noise. Neper[dB], MilliDecibel[dB] are the few other units in which Common Mode Gain can be measured.

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