For BJT single stage amplifier we write gm=Ic/VT where VT is Thermal voltage whose value is 26mv. Now if we have a Darlington pair i.e. two transistor connected in CC-CC mode what will be overall gm.(adsbygoogle = window.adsbygoogle || []).push({});

Will the collector current Ic be divided by 52mv or 26mv. (Because in gain equation gm comes)

as their are two forward active PN junctions ...the cumulative change in VT is 52mV?

is this correct?

can someone through light on "why we have to include Boltzmann constant in calculation of VT"

in simple words?

Thanks in advance

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# BJT single stage amplifier we write gm=Ic/VT

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