Chapter 4, Problem 4.61P

The ac equivalent circuit of a CMOS common−source amplifier is shown in Figure P4.61. The transistor parameters for $M_1$ are $V_{TN}=0.5\text{V}$ , ${k^{\prime }}_n=85\mu {\text{A/V}}^{\text{2}}$ , ${\left(W/L\right)}_1=50$ , and $\lambda =0.05{\text{V}}^{-1}$ , and for $M_2$ and $M_3$ are

Figure P4.61
$V_{TP}=-0.5\text{V}$ , ${k^{\prime }}_p=40\mu {\text{A/V}}^{\text{2}}$ , ${\left(W/L\right)}_{2,3}=50$ , and $\lambda =0.075{\text{V}}^{-1}$ . Determine the small−signal voltage gain.