(Solved): a) Based on the common source amplifier circuit shown in Fig. Q3a, suppose a limited voltage suppl ...

a) Based on the common source amplifier circuit shown in Fig. Q3a, suppose a limited voltage supply \( V_{D D} \) is imposed such that only a single load is allowed to insert between \( V_{D D} \) and \( V_{\text {out }} \), (i) choose the type of load required to have a fairly constant DC current while achieving a reasonably high voltage gain. (2 Marks) (ii) sketch the small signal model circuit based on Q3a)i), assuming \( \lambda \neq 0 \) and \( \gamma=0 \). (3 Marks)