Saturday, May 27, 2017

ANALOG INTEGRATED CIRCUITS S4 KTU QUESTION PAPERS I






1. Derive the differential mode gain of a balanced output differential amplifier.

2. Compare the parameters of an ideal op-amp and a practical op-amp.

3. Draw and explain a Wilson current source. What is the advantage of Wilson current source compared to simple current source?

4. (a)Assume that Rf =10K,R1 = 2K,Input offset voltage VOS = 5mv,input offset current IOS =50nA and input bias current IB =200 nA. Determine the maximum offset voltage with and without RCOMP.

(b)The 741 IC is used as an inverting amplifier with gain of 50.The sinusoidal input signal has a variable frequency and maximum amplitude of 20mV peak. 

What is the maximum frequency of the input at which the output will be undistorted?

5. Explain a differential amplifier with active load.

6. What is a level shifter? Why it is needed in an op-amp?


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