Chapter 4, Problem 4.2P

A PMOS transistor has parameters $V_{TP}=-0.6\text{V}$ , ${k^{\prime }}_p=40\mu {\text{A/V}}^{\text{2}}$ , and $\lambda =0.015{\text{V}}^{-1}$ . (a) (i) Determine the width−to−length ratio (W/L) such that $g_m=1.2\text{mA/V}$ at $I_{DQ}=0.15\text{mA}$ . (ii) What is the required value of $V_{SGQ}$ ? (b) Repeat part (a) for $I_{DQ}=0.50\text{mA}$ .