spring 2002 3220 Final Exam

# spring 2002 3220 Final Exam - Name SSN 1 Spring2002...

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Name: _______________________________ Spring 2002 SSN: _________________________             EE 3220 Final Exam 1. Sketch the bode plot of the frequency response for the following circuit.  (15%)

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2. Consider the differential amp below. Find I o , r n  , Single ended differential and common mode  gains, and common mode rejection ratio. V SAT  = 0.1 volts, V f  = 0.7 volts.  Make it known if you  make any approximations.           All  β  = 100,  r o3  = 25 k   (15%) V CC  = 12.7 volts   I o  = _______________________ V EE  = -12.7 volts r n  = _______________________ R C  = 5 k Acm-se1 = _________________ R A  =  500  Adm-se1 = _________________ R B  = 5 k CMRRse-1 = _______________ R E  = 10 k
3. The following circuit is used in an op-amp phase shift oscillator.  At approximately what  frequency will there be oscillation?  What gain will the op-amp circuit need to have in order for  oscillation to occur?  What would happen if the op-amp buffers were removed?  (10%)

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4. A noninverting op-amp is made from an op-amp with A
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## This note was uploaded on 01/25/2012 for the course EE 3220 taught by Professor Audiffred during the Spring '06 term at LSU.

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spring 2002 3220 Final Exam - Name SSN 1 Spring2002...

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