9.2 For the PMOS differential amplifier shown in Fig. P9.2, let
V_(tp)=-0.4Vand
k_(p)^(')(W)/(L)=5m(A)/(V^(2)). Neglect channel-length modulation. Figure P9.2 (a) For
V_(G1)=V_(G2)=0V, find
|V_(oV)|and
V_(SG)for each of
Q_(1)and
Q_(2). Also find
V_(S),V_(D1),V_(D2), and
V_(o). (b) If the current source requires a minimum voltage of
0.2V, find the input common-mode range.