Q.1
14 Marks(a)
Define following terms:
1Output offset voltage,
2Input bias current,
3Input offset current,
(b)
Describe block diagram of OPAMP.
(c)
Describe J-K Master Slave flip flop with necessary truth table.
Gujarat Technological UniversitySummer 2026 examination
GTU 3130907 Analog & Digital Electronics Summer 2026 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)
Compare inverting and non inverting amplifier.
(b)
Describe instrumentation amplifier using OPAMP
(c)
Explain inverting circuit using OPAMP with necessary equations and waveforms.
OR
(c)
Explain non-inverting circuit using OPAMP with necessary equations and waveforms.
Q.3
14 Marks(a)
Discuss zero crossing detector using OPAMP
(b)
Classify active filter.
(c)
Describe integrator circuit with necessary waveforms.
OR
(a)
Discuss peak detector using OPAMP
(b)
Discuss PID controller with necessary sketches.
(c)
Describe wein bridge oscillator circuit with necessary waveforms.
Q.4
14 Marks(a)
What is an encoder? How does a priority encoder differ from a conventional encoder?
(b)
How do you characterize or define a combinational circuit? How does it differ from a sequential circuit?. Give one example of combinational circuit
(c)
Calculate following with help of K-Map and implement the output with necessary circuit. y=Σm (0,1,3,5,9,12)+ d(2,4,6,7)
OR
(a)
What is a demultiplexer and how does it differ from a decoder?
(b)
Briefly describe the concept of look-ahead carry generation with respect to its use in adder circuits.
(c)
Calculate the following with help of Quine McClukey tabular method.:
Y=Σ (2,6,8,9,10,11,14,15)
Q.5
14 Marks(a)
Define following terms with respect to A to D converter:
1Resolution
2Accuracy
3Sampling frequency
(b)
Elaborate full adder circuit with truth table.
(c)
Explain the process of digital-to-analogue conversion in a binary ladder network. Write an expression for the output analogue voltage for an n-bit binary ladder network.
OR
(a)
Define following terms with respect to D to A converter:
1Settling time
2Nonlinearity
3Monotonocity
(b)
Elaborate full subtractor circuit with truth table.
(c)
Explain the principle of operation of a simultaneous or flash-type A/D converter. What are the merits and demerits of this type of converter?
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About this paper
Official Gujarat Technological University (GTU) examination paper for Analog & Digital Electronics (Summer 2026, 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.