数字集成电路(电路系统与设计)第3章习题.pdf

1 Chapter 3 Problem Set Chapter 3 PROBLEMS For all problems, use the device parameters provided in Chapter 3 (Tables 3.2 and 3.5) and the inside back book cover, unless otherwise mentioned. Also assume T = 300 K by default. 1. [E,SPICE,3.2.2] a. Consider the circuit of Figure 0.1. Using the simple model, with VDon = 0.7 V, solve for ID . b. Find I and V using the ideal diode equation. Use I = 10–14 A and T = 300 K. D D s c. Solve for V , V , and I using SPICE. D 1 D2 D d. Repeat parts b and c using I = 10–16 A T = 300K, and I = 10–14A, T = 350 K. S , S R = 2kΩ 1 + ID R2 = 2kΩ 2.5 V + – V D – Figure 0.1 Resistor diode circuit. 2 2. [M, None, 3.2.3] For the circuit in Figure 0.2, V = 3.3 V. Assume A = 12 µm , φ = 0.65 V,