In the circuit of let VSS 5 2VDD 5 5 V, RD1 5 RD2 5 15 kV, ISS 5 0.3 mA, and RSS 5 `. The FETs have k9 5 0.1 mA/V2 , Vt 5 20.5 V, 5 0, and 5 0, but are mismatched in their WyL ratios, having W1yL1 5...

In the circuit of let VSS 5 2VDD 5 5 V, RD1 5 RD2 5 15 kV, ISS 5 0.3 mA, and RSS 5 `. The FETs have k9 5 0.1 mA/V2 , Vt 5 20.5 V, 5 0, and 5 0, but are mismatched in their WyL ratios, having W1yL1 5 10 and W2yL2 5 15. (a) If vI1 5 vI2 5 0, fi nd vOD and vS, the voltage at the sources. (b) If vI2 5 0, fi nd the value of vI1 that will equalize the drain currents and thus drive vOD to zero.