Consider the source-degenerated common-source amplifier shown in Fig. P4.11 neglecting the transistor parasitic capacitances. a. Draw an equivalent small-signal circuit at dc. What is the dc...

Consider the source-degenerated common-source amplifier shown in Fig. P4.11 neglecting the transistor parasitic capacitances.

a. Draw an equivalent small-signal circuit at dc. What is the dc small-signal gain, ?

b. Draw an equivalent small-signal circuit at frequencies high enough that may be considered a short circuit. What is the small-signal gain at these frequencies?

c. Make a sketch of the magnitude response versus frequency covering the range of frequencies analyzed in parts (a) and (b) above.