EEE 3308C Spring 2011 HW7

# EEE 3308C Spring 2011 HW7 - b Find the overall gain How...

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Homework 7 Due March 30 P7.1) In the circuit below, the n-channel MOSFET has the following parameters: k n ’ = 4x10 -4 A/V 2 , W=5um, L=1um, V T0 = 0.7V, =0.02 V - 1 , Φ F = 0.3V, = 0.4 V 1/2 . a) Write down the small-signal equivalent circuit. b) Determine the input resistance and the output resistance. c) Find the voltage gain, v o /v ss . d) What is the maximum output swing? Which constraint is reached first (non-linearity or maximum output swing)? P7.2) The transistor is 20x wider than the transistor in Problem 7.1, all other parameters are the same. a) What has changed in the DC operating point?

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Unformatted text preview: b) Find the overall gain. How does it compare to the overall gain in Problem 7.1? P7.3) In the circuit below, the n-channel MOSFET has the following parameters: k n ’ = 4x10-4 A/V 2 , W=5um, L=1um, V T0 = 0.7V, =0.02 V-1 , Φ F = 0.3V, = 0.4 V 1/2 . a) Design the DC bias using 1) the 1/3, 1/3, 1/3 voltage drops ‘rule-of-thumb’, 2) assume ID = 1mA, and 3) Ri = 100 kohm. Specify RS, RD, RG1, and RG2. Round to the nearest kohm. b) Find the overall voltage gain, v o /v ss if Rsig = 5 kohm and RL = 8 kohm....
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EEE 3308C Spring 2011 HW7 - b Find the overall gain How...

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