ECE 250 Homework #9: Amplifier Circuit Analysis and Design - Prof. Marc E. Herniter, Assignments of Electrical and Electronics Engineering

Download ECE 250 Homework #9: Amplifier Circuit Analysis and Design - Prof. Marc E. Herniter and more Assignments Electrical and Electronics Engineering in PDF only on Docsity! ECE 250 Homework #9 Due 5/26/03 Problem 1: - + Vin I + - V4 DC = 3 + - Vcc DC = 15 + - Vee DC = 15+ C1 1000u 0 Vo M1 ZVN3306A 0 0 + Rd a) Bias the amplifier to allow a ± 5 v swing at Vo and ID = 1 mA. For the ZVN3306A, VT = 1.8 volts and K= 60 mA/V2. b) Draw the midband-small-signal model and find the gain Vo/Vin. c) Find a numerical value for the gain using your design values. d) Run an AC Analysis with PSpice and plot the gain of this amplifier versus frequency. See Section 5.D of the PSpice book for an example. Sweep frequencies from 1 mHz to 10 MHz. Use model Qbreakn for the BJT. e) Use the cursors available in Probe to obtain numerical values of the gain predicted by PSpice. Problem 2: Fin the midband gain for the circuits below: Circuit 1: 0 + Rd VCC_CIRCLE VCC_CIRCLE M2 + - V4 DC = 3 Vo I + C1 - + Vin M1 0 0 Find Vo/Vin