AU Solved Paper - set 5

AU Solved Paper [80368]

December-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 Write the advantages ofICs over discrete circuits.

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

Q.2 State the limitations of IC technology.

[Refer Two Marks Q.2 of chapter - 1]

Q.3 Write some applications of operational amplifier.

[Refer Two Marks Q.42 of chapter - 2]

Q.4 What is integrator 1

[Refer Two Marks Q.79 of chapter - 2]

Q.5 Explain the sample and hold circuit.

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

Q.6 Write the difference between active clipper and passive clipper circuit.

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

Q.7 Draw the functional block of 555 timer IC.

[Refer Two Marks Q.2 of chapter - 4]

Q.8 Define PLL.

[Refer Two Marks Q.29 of chapter - 4]

Q.9 What is SMPS ?

[Refer Two Marks Q.22 of chapter - 5]

Q.10 What are the applications of fixed voltage regulator ?

[Refer Two Marks Q.44 of chapter - 5]

 

PART - B (5 × 13 = 65 Marks)

Q.11 a) i) Describe about epitaxial growth process.

[Refer section 1.6] [6]

ii) Explain in detail about the photolithography process with neat diagram.

[Refer section 1.8] [7]

OR

b) Write a note on masking and etching process in IC fabrication.

[Refer section 1.8.3]      [13]

Q.12 a) Discuss in detail about the DC and AC characteristics of op amp.

[Refer sections 2.14 and 2.15]         [13] 

OR

b) Explain the differential amplifier using op-amp.

[Refer section 2.28]       [13]

Q.13 Write a note on logarithmic and antilog amplifier using op amp.

[Refer sections 3.2 and 3.3]    [13]

OR

b) Explain the working of SAR type and Flash type A/D converter.

[Refer sections 3.26.2.2 and 3.26.2.3]       [13]

Q.14 a) With the help of schematic diagram, explain the operation of IC 566 VCO and derive its output frequency.

[Refer section 4.2]         [13]

OR

b) What is PLL ? Flow frequency multiplication is done in PLL ?

[Refer sections 4.3 and 4.5.1] [13]

Q.15 a) What do you mean by the fixed voltage and variable voltage regulator. List its various applications.

[Refer sections 5.9, 5.10]        [13]

OR

b) Write short notes on :

i) LM380 power audio amplifier. [Refer section 5.14]   [6]

ii) ICE 8038 function generator. [Refer section 5.15]    [7]

 

PART - C (1 × 15 = 15 Marks)

Q.16 a) What are the new trends in integrated circuit technologies and explain about its scope for future generation ?

[Refer sections 1.1,1.2]

OR

b) Write a note on recent fabrication methods of FET for industrial applications.

[Refer section 1.14.6]