Q.1
14 Marks(a)
State all ideal characteristics of an opamp
(b)
Describe Input Offset Voltage and Input Bias Current
(c)
Describe the working of JK master slave FF with necessary truth tables and waveforms
Gujarat Technological UniversitySummer 2025 examination
GTU 3130907 Analog & Digital Electronics Summer 2025 Question Paper & PDF
B.E. · Electrical Engineering · Semester 3 · Subject code 3130907
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Discuss the working of Zero Crossing Detector with necessary diagram and waveforms
(b)
Sketch the block diagram of an opamp and briefly explain the function of each block
(c)
Discuss
i)CMRR
ii)Slew Rate
OR
(c)
Explain the working of an Integrator with necessary diagrams
Q.3
14 Marks(a)
Compare RC phase shift and Wien bridge oscillator
(b)
A noninverting opamp with R1 = 1kΩ and RF = 10kΩ has following parameters: A = 200,000, Ri = 2MΩ, Ro = 75Ω, fo = 5Hz, Supply voltages = +15V, Output Voltage Swing = +13V. Solve and find the values of AF, RiF, RoF
(c)
Describe the working of Instrumentation Amplifier using opamp. List it’s advantages and applications
OR
(a)
Write a brief note on Voltage Follower circuit
(b)
Compare a Comparator and Schmitt Trigger circuit
(c)
Explain the working of closed loop opamp in non-inverting mode and derive the voltage gain formula
Q.4
14 Marks(a)
Compare Combinational and Sequential Digital circuits
(b)
Discuss the applications of shift registers
(c)
Minimize the following expressions using K maps:
i)F = Σm (4,5,7,12,14,15) + Σd (3,8,10)
ii)F = ΠM (0,3,7,8,9,10,11,15)• Πd (2,4)
OR
(a)
List the steps to be followed in Quine Mckluskey method
(b)
Describe the working of a decimal to binary encoder with the help of logic diagram and truth table
(c)
Write a note on Ring Counter
Q.5
14 Marks(a)
Explain the following terms of DAC:
aAccuracy b) Resolution c) Setting time
(b)
Explain resolution and quantization error about ADC
(c)
Draw & explain R-2R ladder D/A converter with necessary equations
OR
(a)
List Analog to Digital Converter ICs
(b)
Illustrate different methods for analog to digital conversion
(c)
Draw the block diagram and explain about a 3 terminal voltage regulator
More Analog & Digital Electronics papers
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About this paper
Official Gujarat Technological University (GTU) examination paper for Analog & Digital Electronics (Summer 2025, B.E. · Electrical Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.