7.1 Consider the amplifier of Fig. 7.2(a) with VDD = 1.8 V, RD = 17.5 kΩ, and with a MOSFET specified to have Vt = 0.4 V, kn = 4 mA/V2, and λ = 0. Determine the coordinates of the end points of the active-region segment of the VTC. Also, determine VDS|C assuming VGS|C = VDD.
A: 0.4 V, 1.8 V; B: 0.613 V, 0.213 V; VDS|C = 18 mV