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Unformatted text preview: v , the input resistance R in and the output resistance R out of the commonsource amplifier shown on the right. Assume R I = 1 k Ω , R 1 = R 2 = 2.2 M Ω , R S = 22 k Ω , R D = 18 k Ω , R 3 = 470 k Ω , K p = 400 µ A/V 2 , V T = –1 V, λ = 0.02 V1 , V DD = 18 V. ECE 3040B: Homework #9, Solution April 10, 2009 Page 5 of 8 ECE 3040B: Homework #9, Solution April 10, 2009 Page 6 of 8 ECE 3040B: Homework #9, Solution April 10, 2009 Page 7 of 8 ECE 3040B: Homework #9, Solution April 10, 2009 Page 8 of 8 4. SPICE Simulation (20 points) Find the Qpoint and the signal source voltage gain A v of the amplifier given in problem 3 using SPICE. Please provide a plot of the circuit showing the dc currents and voltages and a plot showing the input and the output signal at 7.5 kHz as a function of time. Assume, C 1 = C 2 = C 3 = 10 μF. QPoint: (I D = 310 μA, V DS = 5.58 – 11.18 V = – 5.60 V) Terminal Voltage Gain: A v ≈ – 8.2...
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This note was uploaded on 01/17/2011 for the course ECE 3040 taught by Professor Hamblen during the Fall '07 term at Georgia Tech.
 Fall '07
 HAMBLEN

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