Problem 5: The transistor parameters for the common-source amplifier in Figure 5 are VTnD = 0. 4 V, Vrpl = -0.4 V, (W/L)L = 50, Ap = 0.02 v^1, a1

= 0.04 V~1, kh = 100µA/V²,and kp, = 40µA/V². At the Q-point, Ipo = 0.5 mA.(12 points) (a) Determine (W /L)D such that the small-signal voltage gain is -40 ) What is the required value of VB (c) What is the value of VcSpo ? (d) Find the value of resistance R,