In the given circuit diagram that there are two identical enhancement type MOSFETs that are connected in series. Both MOSFETs are in saturation at the gate voltage of VBias 1.
Voltage output is considered to be constant then?
(Vin is the input signal given to the circuit)
1
\({g_m} = \frac{{d{I_o}}}{{d{V_{in}}}}\)
2
\({g_{m1}} = \frac{{d{I_{D1}}}}{{d{V_{in}}}}\)
3
\({g_{m2}} = \frac{{d{I_{D2}}}}{{d{V_{in}}}}\)
4
gm = gm2