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Design With Linear Integrated Circuits Question Paper - May 17 - Electronics Engineering (Semester 5) - Mumbai University (MU)

## Design With Linear Integrated Circuits - May 17

### Electronics Engineering (Semester 5)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

1.a. Compare integrator and differentiator.
(5 marks) 00

1.b. Define input offset voltage, output offset voltage, input bias
(5 marks) 00

1.c. Explain any five specifications of the digital to analog converter (DAC).
(5 marks) 00

1.d. Describe the basic block diagram of the phase locked Loop (PLL).
(5 marks) 00

2.a. Describe the expression of inverting & the non-inverting amplifier using op-amp (Av) & design them both for |AV|=10
(10 marks) 00

2.b. Derive the output voltage $\left(\mathrm{V}_{0}\right)$ expression of ap-amp three input averaging circuit.
(10 marks) 00

3.a. Design $2^{n d}$ order KRC Low pass filter (LPF) for cut-off frequency fo=10 kHz with quality factor (Q) of 5.
(10 marks) 00

3.b. Design $1^{\mathrm{st}}$ order high pass filter for a cut-off frequency fo=2 kHz with unity gain. How will you modify the design to achieve low pass filter (LPF) operation?
(10 marks) 00

4.a. Describe the parallel comparator/flash type analog to digital
(10 marks) 00

4.b. Explain the operation of Schmitt Trigger with neat diagram, input & output waveforms with transfer characteristics.
(10 marks) 00

5.a. Design a monostable multivibrator using IC 555 to generate a time delay of T=500ms. Assume $+\mathrm{V}_{\mathrm{cc}}=10 \mathrm{V}$
(10 marks) 00

4.b. Design a positive voltage regulator to generate Vo =+5V with Io = 50mA by using IC LM 723. Draw neat diagram of the designed circuit.
(10 marks) 00

6.a. 3 stage R-C phase shift oscillator using op-amp.
(5 marks) 00

6.b. Triangular waveform generator using op-amp.
(5 marks) 00

6.c. Precision Rectifier using op-amp.
(5 marks) 00

6.d. Log-Antilog amplifier using op-amp.
(5 marks) 00

6.d. Voltage controlled oscillator (VCO)
(5 marks) 00

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