3-Integrated Common Drain Amplifier: For the circuit in Fig.3, draw the small signal equivalent circuit and find the following values: D1 W3 Wi Vinoc min VinDc max go2 Vout/Vin Rout You can assume that the overdrive voltage for all transistors is 0.25V. The bias current is 25μA and the current mirror is 1:1. All gate lengths are 0.5um (since the gate length is so small, you can omit the channel length modulation when calculating the drain to source current). Vdd is 3.3V. The NMOS and PMOS have the following characteristics:
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