Let the FETs of the folded cascode of have Vt 1 5 2Vt 2 5 0.5 V, k1 5 k2 5 0.8 mA/V2 , 1 5 1y(15 V), and 2 5 1y(10 V). (a) If IBIAS 5 200 A and ILOAD 5 100 A, fi nd the required VGS1. Hence, fi nd...

Let the FETs of the folded cascode of have Vt 1 5 2Vt 2 5 0.5 V, k1 5 k2 5 0.8 mA/V2 , 1 5 1y(15 V), and 2 5 1y(10 V).

(a) If IBIAS 5 200 A and ILOAD 5 100 A, fi nd the required VGS1. Hence, fi nd VG2 such that vO(max) 5 1.0 V.

(b) If the IBIAS source has an equivalent parallel resistance of 250 kV, and the ILOAD sink has an equivalent parallel resistance of 5 MV, fi nd a1, a2, and voyvi .

(c) What is the maximum amplitude of vi that will still yield an undistorted vo?