(Solved): 9.2 For the PMOS differential amplifier shown in Fig. P9.2, let \( V_{\Phi}=-0.4 \mathrm{~V} \) and ...

9.2 For the PMOS differential amplifier shown in Fig. P9.2, let \( V_{\Phi}=-0.4 \mathrm{~V} \) and \( k_{p}^{\prime} W / L=5 \mathrm{~mA} / \mathrm{V}^{2} \). Neglect channel-length modulation. (a) For \( V_{G 1}=V_{G 2}=0 \mathrm{~V} \), find \( \left|V_{o v}\right| \) and \( V_{S G} \) for each of \( Q_{1} \) and \( Q_{2} \). Also find \( V_{S}, V_{D 1}, V_{D 2} \), and \( V_{O} \). (b) If the current source requires a minimum voltage of \( 0.2 \mathrm{~V} \), find the input common-mode range.