Consider a design of the cascode op amp of Fig. 12.9 for

Chapter 12, Problem 12.16

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Consider a design of the cascode op amp of Fig. 12.9 for which I = 96 A and IB = 120 A. Assume that all transistors are operated at = 0.2 V and that for all devices, = 12 V. Find Gm, Ro, and Av. Also, if the op amp is connected in the feedback configuration shown in Fig. P12.16, find the voltage gain and output resistance of the closed-loop amplifier.

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