Using Fig XXXXXXXXXXand the results from problem 31.11, (a) draw the small-signal open-loop model for the circuit and (b) find the expressions for the open-loop parameters, A 0L , ß, R 1 , and R 0 and...

Using Fig. 31.56 and the results from problem 31.11, (a) draw the small-signal open-loop model for the circuit and (b) find the expressions for the open-loop parameters, A_0L, ß, R₁, and R₀
and (c) the closed-loop parameters, A_CL
and R_{a w t}. Note that finding R
_in
is a trivial matter since the signal is input into the gate of Ml.