(a) Let the FETs of have k2 5 2k1 5 1 mA/V2 and Vtn 5 2Vtp 5 0.75 V. If RBIAS 5 2R 5 8 kV and VDD 5 2.5 V, use iterations to fi nd IBIAS and IREF. (b) Repeat if VDD is increased by 20%, and comment. ...

(a) Let the FETs of have k2 5 2k1 5 1 mA/V2 and Vtn 5 2Vtp 5 0.75 V. If RBIAS 5 2R 5 8 kV and VDD 5 2.5 V, use iterations to fi nd IBIAS and IREF. (b) Repeat if VDD is increased by 20%, and comment.

(a) If multimeter measurements on the circuit of yield IC1 5 250 A, IC2 5 100 A, and DVBE 5 60 mV, fi nd R. If Is1 5 Is4 5 2 fA, fi nd Is2 and Is3. (b) If R is halved, which voltages and current change, and by how much? Which remain unchanged?