pract_ex2_a - NAME _SOLUTIONS_ NETID _ MIDTERM EXAM 2...

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NAME ____ SOLUTIONS _________________________ NETID _______________ MIDTERM EXAM 2 (Closed book) ECE 442 April 13, 2006 7:00 p. .m. – 8:30 p.m. Instructions : Write your name, and NetID where indicated. This examination consists of 4 problems. You are allowed to use a calculator and a formula sheet (8 1/2 by 11 in). Show all work. Problem1 15 pts Problem 2 25 pts Problem 3 50 pts Problem 4 10 pts Total
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- 2 - 1. In the circuit shown, assume R g = 1 k Ω , R in = 10 k Ω , and the midband voltage gain is -12 V/V. Choose a value for C c1 that will result in a 3-dB frequency of 6 Hz. (15 pts) R out Α V ab R g + - + R in V in a b - + - V ab V out C C1 11 /( ) 1/ 1 ( ) in in g ab in in in g c c in g RRR VR R j C j C R R ωω + == ++ + + 1 1 () / 1() 1 / ci n g ab in in l in in g c in g in g l jC R R Rj f f R j C R R R R j f f ω + =⋅ + 1 2.4 2 ( ) 2 6 11,000 c li n g CF fR R μ ππ === ×
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- 3 - 2. For the amplifier shown μ WC ox /2L = 3 mA/V 2 , λ =0.02/V, and V T = 1.0 V. (a) Calculate V DSQ when V GSQ = 1.5 V (15 pts). (b) Calculate the midband voltage gain for the stage (10 pts).
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This note was uploaded on 09/19/2009 for the course ECE 442 taught by Professor Schutt-aine during the Spring '08 term at University of Illinois at Urbana–Champaign.

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pract_ex2_a - NAME _SOLUTIONS_ NETID _ MIDTERM EXAM 2...

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