
8.71 Consider the cascode amplifier of Fig. 8.31 with the dc component at the input VI = 0.6 V, VG2 = 0.9 V, VG3 = 0.4 V, VG4 = 0.7 V, and VDD = 1.3 V. If all devices are matched, that is, kn1 = kn2 = kp3 = kp4, and have equal |Vt| of 0.4 V, what is the overdrive voltage at which the four transistors are operating? What is the allowable voltage range at the output? 0.2 V; 0.5 V to 0.8 V
8.71 Consider the cascode amplifier of Fig. 8.31 with the dc component at the input VI = 0.6 V, VG2 = 0.9 V, VG3 = 0.4 V, VG4 = 0.7 V, and VDD = 1.3 V. If all devices are matched, that is, kn1 = kn2 = kp3 = kp4, and have equal |Vt| of 0.4 V, what is the overdrive voltage at which the four transistors are operating? What is the allowable voltage range at the output? 0.2 V; 0.5 V to 0.8 V