Electrical Engineering Archive: Questions from 2023-07-23

4.47 The small-signal parameters of the NMOS transistor in the ac equivalent common-gate circuit shown in Figure P4.47 are VTN = 0.4 V, kn' = 100 uA/V2, W/L = 80, and lambda = 0. The quiescent drain current is IDQ = 0.5 mA. Determine the small-signal voltage gain and the input resistance.

PMOS transistor has Vtp = -0.75 V, kp'(W/L) = 0.8 mA/V^2, gamma = 0. (20 points) a. Find the Q-point (VGS, VDS, ID) for the transistor if R = 50 kohm. b. What is the permissible range of values for R if the transistor is to remain in the saturation region?

4.140 (a) Find the Q-point for the transistor in Fig. P4.140 if R = 50 kOhm Assume that gamma = 0 and W/L =20/1. (b) What is the permissible range of values for R if the transistor is to remain in the saturation region?

The transistor parameters are: VTO = 0.8V, VTL = -0.8 V, kn' = 50 µA/V2 , and kp' = 25 µA/V2. For (W/L)N = 2, and (W/L)P = 4. Calculate the power dissipation in a CMOS inverter for VDD = 1.7 V.

What is the switching threshold voltage of a CMOS NAND2 logic gate when inputs switch simultaneously, if (W/L)n = 2(W/L)p, k