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JNTU B.Tech III Year I Semester LINEAR AND DIGITAL IC APPLICATIONS Previous Question Paper (July/August - 2023 - R13)

B.Tech | III Year I Semester | III-I | R13 | July/August - 2023

Answer PaperPaper Code: 115EBMaximum Marks: 75Time: 3 Hours

Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.

Part A

(25 Marks)

125 marks
a
Mention the features of 723 regulators.
2 marks

Answer

The 723 voltage regulator IC offers several features:

  • Adjustable output voltage from 2 to 37V.
  • Input voltage up to 40V.
  • Current limiting capability.
  • Internal temperature compensation.
  • Short-circuit protection.
  • Low standby current.
b
Write about comparator in brief.
3 marks

Answer

A comparator is a circuit that compares two input voltages and produces an output signal indicating which voltage is larger. It is essentially an open-collector or open-emitter operational amplifier. When the non-inverting input is higher than the inverting input, the output goes high; otherwise, it goes low. Comparators are used in applications like zero-crossing detectors, window detectors, and analog-to-digital converters.

c
What is all-pass filter?
2 marks

Answer

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d
What are the features of 555 timer?
3 marks

Answer

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e
How would you classify ADCs?
2 marks

Answer

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f
What is the drawback of weighted resistor DAC? Write down the method to overcome this drawback.
3 marks

Answer

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g
What is the magnitude comparator?
2 marks

Answer

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h
Write short notes about code converters.
3 marks

Answer

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i
Write the truth table for J-K flip-flop.
2 marks

Answer

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j
List out the applications of ROM.
3 marks

Answer

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Part B

(50 Marks)

210 marks
a
Explain the working of non-inverting amplifier and derive the equation of its Gain.
5 marks

Answer

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b
Explain the working of an ideal and practical differentiator.
5 marks

Answer

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OR
310 marks
a
Explain the working of instrumentation amplifier with suitable diagram.
5 marks

Answer

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b
What is an ideal active differentiator? Explain its working with neat circuit diagram.
5 marks

Answer

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410 marks
a
Design an active high pass filter with cutoff frequency of 4KHz.
5 marks

Answer

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b
Draw and explain block schematic of PLL.
5 marks

Answer

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OR
510 marks
a
Explain the monostable multivibrator operation in IC 555 timer and derive it’s pulse width.
7 marks

Answer

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b
Write about active notch filter.
3 marks

Answer

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610 marks
a
Explain about ladder type DAC with neat diagram.
5 marks

Answer

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b
Draw the circuit and explain the working of dual slope A/D converter.
5 marks

Answer

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OR
710 marks
a
Explain the DAC and ADC specifications.
6 marks

Answer

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b
Find the number of resistors required for an 8-bit weighted resistor D/A converter. Consider the smallest resistance is R and obtain those resistance values?
4 marks

Answer

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810 marks
a
List out the merits and limitations of integrated circuit technology.
5 marks

Answer

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b
Give the design considerations of 2×4 decoder and explain the operation with relevant circuit.
5 marks

Answer

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OR
910 marks
a
Implement the following Boolean function using 8:1 multiplexer F(A,B,C.D) = Σ𝑚 (0,1,2,5,7,8,9,14,15)
5 marks

Answer

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b
Design a 4 bit binary parallel subtractor and the explain operation in detail.
5 marks

Answer

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1010 marks
a
Design a SR flip flop using NAND gates. Explain the operation of the SR flip flop with the help of characteristic table.
5 marks

Answer

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b
Describe shift registers and explain 4-bit bidirectional shift register with parallel load.
5 marks

Answer

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OR
1110 marks
a
Explain 4-bit synchronous up-down binary counter.
5 marks

Answer

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b
Discuss the read and write operations of SRAM.
5 marks

Answer

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This page contains the solved question paper with answers of LINEAR AND DIGITAL IC APPLICATIONS from JNTU for B.Tech ECE III Year I Semester III-I, July/August - 2023, R13.

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