Transconductance

Transconductance , also known as slope , is a parameter for certain electronic components such as amplifiers . It indicates the ratio of an output current to an input voltage . This is a so-called small - signal parameter , since the transconductance is created by linearizing the transmission behavior at the operating point.

${\displaystyle g_{\mathrm {m} }={i_{\mathrm {out} } \over u_{\mathrm {in} }}}$

It is in i _out and u _in to small signal sizes. With DC voltage one can also write:

${\displaystyle g_{\mathrm {m} }={\Delta I_{\mathrm {out} } \over \Delta U_{\mathrm {in} }}}$

See also

• Transconductance amplifier
• Transimpedance amplifier