(a) Find ID1, ID2, and VS in the circuit of Fig. P4.6 for the case of matched FETs with k1 5 k2 5 200 A/V2 , Vt 1 5 Vt 2 5 0.5 V, and 1 5 2 5 0. (b) Repeat if the FETs are mismatched with k1 5 205...

(a) Find ID1, ID2, and VS in the circuit of Fig. P4.6 for the case of matched FETs with k1 5 k2 5 200 A/V2 , Vt 1 5 Vt 2 5 0.5 V, and 1 5 2 5 0.

(b) Repeat if the FETs are mismatched with k1 5 205 A/V2 , k2 5 190 A/V2 , Vt 1 5 0.48 V, and Vt 2 5 5.1 V. Hint: ask yourself what voltage VG1 you would need to apply to M1’s gate to ensure identical drain currents; then, what happens if you drive VB1 back to zero?

(c) Repeat part (a) if the FETs have 5 1y(20 V). (d) Repeat part (c) if M1’s drain is lifted off ground and tied to a 5-V supply.