2004MT2 - EECS 413 Midterm 2 2004 Exam duration: 1 hour and...

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EECS 413 Midterm 2 2004 Exam duration: 1 hour and 30 minutes 4 questions Name: Honor Pledge I have not given or received aid on this exam Signed: ________________________ Q1 Q2 Q3 Q4 1
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Q1 v out R L Vin C L ~ 2R L C L M1 M2 (a) Ignore channel length modulation Assume transistors are in saturation and identical . What is the low frequency small signal gain (v out /v in )of the amplifier ? (b) An amplifier of gain A is placed in unity gain feedback. What it the low frequency gain of the overall system? 2
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(c) An amplifier has a phase of -130’ at the frequency where the loop gain has a magnitude of one ( ω 0 ), what is the phase margin? What is the phase of the overall closed loop amplifier at ω = ω 0 ? (d) If VDD is 3V, V GS1 =1.25V and V TN =-V TP =1V , what is the Vin ~ M1 v out M3 VDD maximum small signal gain? 3
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Q2 Ignore channel length modulation R source v out +- R L R L V+ V- C L C L M1 M2 Assume transistors are in saturation The figure shows a differential amplifier with identical transistors M1 and M2 (a) Given that v in = v+ - v- and v+ = - v- what is the low
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This note was uploaded on 01/12/2012 for the course EECS 413 taught by Professor Staff during the Spring '08 term at University of Michigan.

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2004MT2 - EECS 413 Midterm 2 2004 Exam duration: 1 hour and...

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