Chapter 10, Problem D10.79P

The bias voltage of the MOSFET amplifier with active load in FigureP10.79 is changed to $V^{+}=3V$ . The transistor parameters are $V_{TN}=0.5V,V_{TP}=-0.5V,{k^{\prime }}_n=100\mu A/V^2,{k^{\prime }}_P=60\mu A/V^2$ , and ${\lambda }_n={\lambda }_P=0.02V^{-1}$ . The quiescent values are Vo = 1.5 V and V, = 1.2 V. (a) Designthe circuit W/L ratios, such that $I_{REF}=I_O=100\mu A$ . Assume $M_1$ and $M_2$ are matched. (b) Determine the small-signal voltage gain.