SAMPLE QUESTIONS IN ANALOG ENGINEERING

SAMPLE QUESTIONS – ANALOG ENGINEERING

  1. Design a combination of inductors, resistors and capacitors that has an equivalent impedance of 1 + 4 jΩ at w = 1 rad/sec. 2M
  2. In a series RC circuit RMS voltage measured across the resistor is 12V and the RMS voltage measured across capacitor is 15V. The RMS voltage of the source is _______ 1M
  3. A 6KHz sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is ________. 1M

4. Figure out the Vout wave form of the following circuits assuming R=1 K Ohm and C=1 micro-farad and input is square wave of Frequency 200Hz.  4M

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  1. For the circuit shown below plot the trans-conductance as a functions of VDS. 1M

  2. Using only inverters, design simplest memory element. How many stable and Meta stable points does it have? Explain the conditions that lead to Meta stability . 2M
  3. Why latch-up occurs? How can you avoid the problem of latch-up? 2M
  4. Keeping all the other parameters constant plot ID Vs VDS characteristic of a MOSFET for length L = L1 and L = 2L1. 2M
  5. Sketch the drain current (ID) and transconductance (gm) of the transistor M as a function of input voltage. 2M

6. Assuming the value of the resistor as R, What are the effective resistance from source to drain of the following two transistors? 2M

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7. Vin = Sin Ɯt. Find Vout  what happens if the input terminals are interchanged?

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