Solved question paper for LIC May-2023 (B-TECH 5th)
Solved Question Paper
Linear integrated circuits May-2023
PTU • B-TECH • Electronics and Communication Engineering • 5th • May-2023
linear integrated circuits previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program in the Electronics and Communication Engineering stream, 5th semester. This section makes it easier to browse subject-wise old question papers for linear integrated circuits, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for linear integrated circuits question bank with answers while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
UNIT I
DIFFERENTIAL AND CASCADE AMPLIFIERS: Introduction, Differential
Amplifier, Differential Amplifier Circuit Configuration, Dual Input-Balanced output
Differential Amplifier, Dual Input-Unbalanced output Differential Amplifier, Single
Input-Balanced output Differential Amplifier, Single Input-unbalanced output
Differential Amplifier with their DC and AC analysis, Differential Amplifier with
swamping resistors, Constant current bias, Current Mirror, Cascaded differential
Amplifier Stages, Level Translator, CE-CB configuration.
UNIT II
INTRODUCTION TO OPERATIONAL AMPLIFIERS: Block diagram of a typical
Op-Amp, Schematic symbol, integrated circuits and their types, IC package types, Pin
Identification and temperature range, Interpretation of data sheets, Overview of typical
set of data sheets, Characteristics and performance parameters of and Op-Amp, Ideal
Op-Amp, Equivalent circuit of an Op-Amp, Ideal voltage transfer curve, Open loop
configurations : Differential, Inverting & Non Inverting. Practical Op-Amp: Input offset
voltage, Input bias current, Input offset current, total output offset voltage, Thermal drift,
Effcet of variation in power supply voltages on offset voltage, Change in Input offset
voltage and Input offset current with time, Temperature and supply voltage sensitive
parameters, Noise, Common Mode configuration and common mode rejection Ratio.
Feedback configurations.
UNIT III
APLICATIONS OF OP-AMP: DC and AC amplifiers, Peaking Amp, Summing,
Scaling and Averaging Amp, Instrumentation Amplifier, V to I and I and to V converter,
Log and Antilog Amp, Integrator, Differentiator. Active filters: First order LP
Butterworth filter, Second order LP Butterworth filter, First order HP Butterworth filter,
Second order HP Butterworth filter, Higher order filters, Band pass filter, Band reject
filters, All pass filter, Phase shift oscillator, Wein bridge oscillator, Quadrature
oscillator, Square wave generator, Triangular wave generator, Sawtooth wave generator,
Voltage controlled oscillator, Basic comparator, Zero crossing detector, Schmitt trigger,
window detector, V to F and F to V converters, A to D and D to A converters, Peak
Detector, Sample and Hold Circuit.
UNIT IV
SPECIALIZED IC APPLICATIONS: IC 555 Timer: Pin configuration, Block
diagram, application of IC 555 as Monostable and Astable Multivibrator., Phase Lock
Loops: Operating principles & applications of IC 565, Voltage Regulators: Fixed voltage
regulators, Adjustable voltage regulators, Switching Regulators.
Solved Questions
Solved-
Explain why the input terminals of an op-amp are named as inverting input and non-inverting input?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What are the disadvantages of just increasing the value of Ref for improving CMRRVery Short Answer 2 Marks May-2023 • PTU B-TECH
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What are the limitations of an ideal integrator?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Give two reasons why open loop op-amp is unsuitable for linear applications.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is a Schmitt trigger? What are its applications?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is the working principle of switching regulator?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is the effect on input resistance if three Op-amps are used as differential amplifier?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What do you understand by precision rectifier? How do they differ from conventional rectifiers?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What are the features of 555 timers IC?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Give the difference between active and passive filters.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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How op-amp can be used as an integrator and differentiator?Long Answer 5 Marks May-2023 • PTU B-TECH
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What are the factors that affect the input offset voltage, input bias and input offset currents? Explain the circuit designing for input offset voltage compensation.Long Answer 5 Marks May-2023 • PTU B-TECH
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With help of a neat diagram and waveform, explain the Instrumentation Amplifier circuitLong Answer 5 Marks May-2023 • PTU B-TECH
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Derive the expression for output frequency and gain of phase shift oscillatorLong Answer 5 Marks May-2023 • PTU B-TECH
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Draw the circuit of a first order and second order active low pass filter and derive its transfer function.Long Answer 5 Marks May-2023 • PTU B-TECH
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Describe PLL with block diagram. Also discuss applications of PLL in phase detector.Long Answer 10 Marks May-2023 • PTU B-TECH
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What is slew rate? What are its causes? Derive the expression of maximum frequency of operation for a desired output swing in terms of slew rate.Long Answer 10 Marks May-2023 • PTU B-TECH
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Draw the astable multivibrator using 555 timer and derive its frequency of oscillation.Long Answer 10 Marks May-2023 • PTU B-TECH
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Design an astable multivibrator having an output frequency of 10 KHz with a duty cycle of 25%.Long Answer 10 Marks May-2023 • PTU B-TECH
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The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.
Determine: Icq and VCEQ values.Long Answer 10 Marks May-2023 • PTU B-TECH-
May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Voltage gain Ad.
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May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Input and output resistances.
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The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.
Determine: Voltage gain Ad.Long Answer 10 Marks May-2023 • PTU B-TECH-
May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Icq and VCEQ values.
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May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Input and output resistances.
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The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.
Determine: Input and output resistances.Long Answer 10 Marks May-2023 • PTU B-TECH-
May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Icq and VCEQ values.
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May 2023 The following specifications are given for the dual input balanced output differential amplifier Rc = 2.4 kΩ, R1 = 4.5 kΩ, Rint = Rin2 = 60 Ω, -Vcc = 10V, Vee = 10V, βdc = - βac = 100 and Vref = 0.71V typically.\r\n\r\nDetermine: Voltage gain Ad.
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01 Where can I find linear integrated circuits previous year question papers for Bachelor of Technology Electronics and Communication Engineering, 5th semester?
This page lists linear integrated circuits question papers uploaded for Punjab Technical University Bachelor of Technology Electronics and Communication Engineering, 5th semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year linear integrated circuits papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does linear integrated circuits usually cover?
The question papers here relate to the official linear integrated circuits syllabus set by the university for this course and semester.
05 Does this page include a linear integrated circuits question bank with answers or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology Electronics and Communication Engineering?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology Electronics and Communication Engineering.