Let the FETs in the pMOS mirror of Fig. P4.80 be matched devices with Vt 5 20.5 V, k 5 0.5 mA/V2 , and 5 1y(10 V). (a) If VDD 5 3 V, fi nd R so that IO 5 0.1 mA at dc balance. What is Ro? Find vO(max)...

Let the FETs in the pMOS mirror of Fig. P4.80 be matched devices with Vt 5 20.5 V, k 5 0.5 mA/V2 , and 5 1y(10 V). (a) If VDD 5 3 V, fi nd R so that IO 5 0.1 mA at dc balance. What is Ro? Find vO(max) for which Q2 is still saturated. (b) If R 5 10 kV, fi nd IO, Ro, and vO(max).