transconductance

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transconductance

[¦tranz·kən′dək·təns]
(electronics)
An electron-tube rating, equal to the change in plate current divided by the change in control-grid voltage that causes it, when the plate voltage and all other voltages are maintained constant. Also known as grid-anode transconductance; grid-plate transconductance; mutual conductance. Symbolized Gm ; gm .
A field-effect-transistor rating, equal to the change in drain current divided by the change in gate-to-source voltage that causes it, when the drain voltage and all other voltages are maintained constant. Symbolized gfs .
An amplifier parameter, equal to the change in output current divided by the change in input voltage that causes it. Symbolized gm .
References in periodicals archive ?
The wide-bandwidth internal transconductance, Gm amplifier and integral dynamic voltage positioning enables ultra-fast transient response with minimal external output capacitance.