Solve the following problem:
Q: Consider the CMOS amplifier of Fig when fabricated with a process for which k1n = 4k1p = 400 μA/V2, / Vt / 0.5 V, and /VA /=5 V. Find IREF and (W/L)1 to obtain a voltage gain of -40 V/V and an output resistance of 100 kΩ. Recall that Q2: and Q3: are matched. If Q2: and Q3: are to be operated at the same overdrive voltage as Q1: what must their W/L ratios be?
