In the circuit of Fig. P3.63 the enhancement FET Me acts as a voltage follower, and the depletion FET Md as a current source to bias Me. Let Me have Vt 5 1.0 V, k 5 2.0 mA/V2 , and  XXXXXXXXXX V21 ,...

In the circuit of Fig. P3.63 the enhancement FET Me acts as a voltage follower, and the depletion FET Md as a current source to bias Me. Let Me have Vt 5 1.0 V, k 5 2.0 mA/V2 , and  5 0.025 V21 , and let Md have Vt 5 21.0 V, k 5 2.0 mA/V2 , and  5 0.02 V21 . (a) Find the dc operating points of the two FETs for vI 5 0. To simplify your dc calculations, assume 5 0. (b) Find Ri , Ro, and voyvi . (c) What is the range of values of vI over which the circuit will operate properly, with each FET in the active region?