Question

D 6.112 The MOSFET in the circuit of Fig. P6.112 has = 5 mA/V, and V, = 40 V. (a) Find the values of Rs,RD, and RG so that ID=0.4 mA, the largest possible value for R is used while a maximum signal swing at the drain of +0.8 V is possible, and the input resistance at the gate is 10 MS2. Neglect the Early effect. (b) Find the values of gm and r, at the bias point. (c) If terminal Z is grounded, terminal X is connected to a signal source having a resistance of 1 MS2, and terminal Y is connected to a load resistance of 10 k2, find the voltage gain from signal source to load. (d) If terminal Y is grounded, find the voltage gain from X to Z with Z open-circuited. What is the output resistance of the source follower? (e) If terminal X is grounded and terminal Z is conn 50 μ A and a current source delivering a signal current o aving a resistance of 100 k2, find the voltage sjgne that can be measured at Y. For simplicity, negle effect of effect of r +5 V RG -5 V Figure P6.112

Answer 1

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