Chapter 10, Problem 10.52P

Figure P10.52 is a PMOS version of the current-source circuit shown inFigure 10.17. The transistor $M_2$ sources a bias current to a load circuit. Assume the circuit is biased at $V^{+}=+5V$ and $V^{-}=-5V$ , and assume thetransistor parameters are $V_{TP}=-0.5V,{k^{\prime }}_P=50\mu A/V^2,{\left(W/L\right)}_1={\left(W/L\right)}_2=15,{\left(W/L\right)}_3=3$ , and $\lambda =0$ . Determine $I_{REF},I_O$ and $V_{SD2}\left(sat\right)$ .