Problem:
(a) The NMOS transistor in the source-follower circuit of Figure(a) has gm = 10 mA/V and a large ro. Find the open-circuit voltage gain and the output resistance.
(b) The NMOS transistor in the common-gate amplifier of Figure(b) has gm = 10 mA/V and a large ro. Find the input resistance and the voltage gain.
(c) If the output of the source follower in (a) is connected to the input of the common-gate amplifier in (b), use the results of (a) and (b) to obtain the overall voltage gain vo/vi .
