test #1 spring 2001

test #1 spring 2001 - 5 Explain the reason why we design...

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 Name:_________________________________________ EE 3220 Test #  1 Spring  2001 SSN:__________________________________________  DO NOT WRITE ON THE BACK OF THESE PAGES. 1.) Perform the DC bias analysis for the circuit below.  (Find all node voltages and  currents).  What is the power absorbed by the transistor? 2.) For the BJT current source below, find: I o   = _________   r n  = ___________ Given  r o3   = 104 , and  β  = 100    Power absorbed by Q1 =  _________
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3.) For a resistor current source, design R E  so that the current is the same as in  problem # 2.  Also find  r n  and the power absorbed by Q1. 4.) Draw the complete small signal model for the circuit below and derive the gain  v o /v s . Assume C E  and C L  have negligible impedances in the small signal model.
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Unformatted text preview: 5.) Explain the reason why we design BJT inverters with feedback resistors (R E ). 6.) Which current source would minimize DC power consumption and allow us to bias multiple differential amplifiers? 7.) Which current source would be practical for a large CMRR and could easily be built in a lab environment? 8.) Which current source is best for large CMRR and least number of resistors? 9.) Compute the swing range for the differential amplifier under differential mode excitation. 10.) What is the largest differential mode input signal that will not produce a distorted output signal? Which output will give us the largest, non-distorted output signal?...
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test #1 spring 2001 - 5 Explain the reason why we design...

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