AU Solved Paper - set 4

AU Solved Paper [57310]

May – 2016

Linear Integrated Circuits and Applications

Semester – III (EEE)

Regulation 2013

 

Time : Three Hours]     [Maximum Marks : 100

Answer ALL Questions.

PART - A (10 × 2 = 20 Marks)

 

Q.1 State the limitations of IC technology.

 [Refer Two Marks Q.2 of chapter - 1]

Q.2 Distinguish between dry etching and wet etching.

[Refer Two Marks Q.62 of chapter - 1]

Q.3 Why IC 741 is not used for high frequency applications.

[Refer Two Marks Q.78 of chapter - 2]

Q.4 Draw the circuit diagram of an integrator and give its output equation.

[Refer Two Marks Q.40 of chapter - 2]

Q.5 What is sample and hold circuit ? Where it is used ?

[Refer Two Marks Q.71 and Q.83 of chapter - 3]

Q.6 What is the advantage of using active clipper over passive clipper ?

[Refer Two Marks Q.123 of chapter - 3]

Q.7 Define capture range of PLL.

[Refer Two Marks Q.39 of chapter - 4]

Q.8 What is analog multiplier IC ? Where it is used 1

[Refer Two Marks Q.60 of chapter 4]

Q.9 Why do switching regulators have better efficiency than the series regulators ?

[Refer Two Marks Q.29 of chapter - 5]

Q.10 Give some examples of monolithic IC voltage regulators.

[Refer Two Marks Q.43 of chapter - 5]

 

PART - B (5 × 16 = 80 Marks)

Q.11 a) i) Distinguish diffusion and ion Implantation process in IC fabrication.

[Refer sections 1.9 and 1.10]  [6]

ii) Describe the metallization process, assembly processing and packaging with neat diagram.

[Refer sections 1.12.2, 1.13]   [10] 

OR

i) Discuss briefly about the PN junction diode and JFET fabrication.

[Refer sections 1.14.2 and 1.14.6]   [16]

Q.12 a) Discuss the frequency response characteristics and compensation of an operational amplifier.

[Refer sections 2.15.1 and 2.32]      [16]

OR

i) Explain the application of Op-Amp as differentiator.

[Refer section 2.30] [8]

ii) Find V₀ for the given circuit.

[Refer example 2.28.2] [8]

Q.13 a) i) Design a Schmitt trigger using Op-Amp.

 [Refer section 3.28]      [8]

ii) Explain the working of successive approximation type A/D converter.

[Refer section 3.26.2.2] [8]

OR

b) i) Draw the instrumentation amplifier using 3 Op-Amp and derive its output voltage equation.

[Refer section 3.1]         [8]

ii) Explain the first order low pass butterworth filter with a neat diagram. Derive its frequency response and plot the same.

[Refer section 3.6]         [8]

Q.14 a) With the help of schematic diagram, explain the operation of IC-566 VCO. Also derive an expression for the output frequency.

[Refer section 4.2]         [16]

OR

b) i) Design and draw the waveform of a 1 kHz square wave generator using 555 timer for duty cycle of 50%.

[Refer example 4.1.9]   [6]

ii) Explain the operation of astable operation of IC555 with necessary waveform.

[Refer section 4.1.3]      [10]

Q.15 a) Explain the operation of switching regulator. Give its advantages.

[Refer section 5.12]       [16]

OR

b) Write short notes on :

i) LM 380 power amplifier. [Refer section 5.14]  [8]

ii) ICE 8038 Function generator. [Refer section 5.15]   [8]