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Practice Final 3

Practice Final 3 - ECE65 Winter 2006 Final Exam Notes 1 For...

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ECE65, Winter 2006, Final Exam Notes: 1. For each problem, 20% of points is for the “correct” final answer. 2. Messy, incoherent papers lose point! Explain what you are doing! 3. Use the following information in solving or designing circuits: OpAmps have a unity-gain bandwidth of 10 6 Hz, a maximum output current limit of 100 mA, and a slew rate of 1 V/ μ s. OpAmps are powered by ± 15 V power supplies (power supplies not shown). NPN transistors have β = 200, β min = 100, r π = 3 kΩ, and r o = 100 kΩ. NMOS transistors have K = 0 . 25 mA/V 2 and V t = 2 V. In circuit design, use 5% tolarence commercial resistor and capacitor values of 1, 1.1, 1.2, 1.3, 1.5, 1.6, 1.8, 2, 2.2, 2.4, 2.7, 3., 3.3, 3.6, 3.9, 4.3, 4.7, 5.1, 5.6, 6.2, 6.8, 7.5, 8.2, 9.1 ( × 10 n where n is an integer). You can also use 5 mH inductors. Problem 1. In the circuit below, find v o in terms of v 1 and v 2 (Assume OpAmps are ideal). (10 pts) Problem 2. An OpAmp circuit containing only one OpAmp is attached to a 500 Ω load. (A) Design the OpAmp circuit such that if an input voltage of V i sin( ωt ) is applied to the circuit,
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