Consider the feedback circuit depicted in Fig. 12.101. Assume VA =∞.
(a) Suppose the output quantity of interest is the collector current of Q2, Iout. Assuming RM is very small and RF is very large, determine the closed-loop gain and I/O impedances of the circuit.
(b) Now, suppose the output quantity of interest is Vout. Assuming RF is very large, compute the closed-loop gain and I/O impedances of the circuit.
