Consider the CMOS common-source amplifier in Fig. 7.4(a) for the case VDD = 3 V, Vtn = |Vtp| = 0.6 V, μnCox = 200 μA/V2, and μpCox = 65 μA/V2. For all transistors, L = 0.4 μm and W = 4 μm. Also, VAn = 20 V, |VAp| = 10 V, and IREF = 100 μA. Find the small-signal voltage gain. Also, find the coordinates of the extremities of the amplifier region of the transfer characteristic-that is, points A and B. (a)