Integrated Circuits and Applications | B.E. Semester V Summer 2018 | GTU Papers

Q: Q1. Draw and explain the block diagram of Op-Amp. List important characteristics of an op amp

This is question 1 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q1. Which type of feedback is used in inverting op-amp? Derive exact expressions for voltage gain, input resistance, output resistance and bandwidth for inverting op-amp.

This is question 1 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q2. Consider an inverting operational amplifier with RF=100KΩ and R1=1KΩ. Input offset voltage drift is 30µV/°Cand input offset current drift is 300Pa/°C. Assume the amplifier is nulled at 25°C. Calculate the value of error voltage Ev and output voltage at 35°Cif Vin=1mV dc.

This is question 2 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q2. Draw & explain the basic differentiator circuit. What are the problems associated with it? Modify the circuit to obtain practical differentiator & prove that it solves the problem of basic differentiator circuit

This is question 2 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q2. Explain the use of differential amplifier using three op-amps as instrumentation amplifier

This is question 2 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q3. Explain the following application of op-amp (1) Small signal Half wave rectifier (2) Peak Detector

This is question 3 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q3. Draw basic log amplifier using a transistor. Derive the expression for output voltage

This is question 3 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q3. Explain the application of op-amp as a positive and negative clipper circuit.

This is question 3 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q3. Discuss operation of op-amp based saw-tooth wave generator circuit with relevant diagram and waveforms.

This is question 3 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Q: Q4. Describe operation of each block of phase locked loop. List out PLL applications.

This is question 4 (7 marks) from the GTU Integrated Circuits and Applications BE Summer 2018 question paper. Subject code: 151003.

Questions17

Draw and explain the block diagram of Op-Amp. List important characteristics of an op amp

[7 marks]

Which type of feedback is used in inverting op-amp? Derive exact expressions for voltage gain, input resistance, output resistance and bandwidth for inverting op-amp.

[7 marks]

Consider an inverting operational amplifier with RF=100KΩ and R1=1KΩ. Input offset voltage drift is 30µV/°Cand input offset current drift is 300Pa/°C. Assume the amplifier is nulled at 25°C. Calculate the value of error voltage Ev and output voltage at 35°Cif Vin=1mV dc.

[7 marks]

Draw & explain the basic differentiator circuit. What are the problems associated with it? Modify the circuit to obtain practical differentiator & prove that it solves the problem of basic differentiator circuit

[7 marks]

Explain the use of differential amplifier using three op-amps as instrumentation amplifier

[7 marks]

Explain the following application of op-amp (1) Small signal Half wave rectifier (2) Peak Detector

[7 marks]

Draw basic log amplifier using a transistor. Derive the expression for output voltage

[7 marks]

Explain the application of op-amp as a positive and negative clipper circuit.

[7 marks]

Discuss operation of op-amp based saw-tooth wave generator circuit with relevant diagram and waveforms.

[7 marks]

Describe operation of each block of phase locked loop. List out PLL applications.

[7 marks]

Draw Sallen-key low-pass filter circuit and obtain its transfer function.

[7 marks]

What are the different types of voltage regulators? Discuss LM317 based adjustable voltage regulator. Indicate bypass capacitors to improve transient response and protective diodes in the connection diagram.

[7 marks]

Explain working of 555 timer based monostable multivibrator. Design the same for the output pulse width of 10 ms.

[7 marks]

Classify filters with four basic types. Explain ideal and practical characteristics of all. Draw attenuation characteristics also.

[7 marks]

Sketch Delyiannis-Friend circuit and obtain its transfer function.

[7 marks]

For the following set of Butterworth LPF specifications. αmax = 0.5 dB , αmin = 20 dB, Wp =1000 rad/sec, Ws = 2000 rad/sec Determine : (1) Order of Butterworth LPF (2) Pole locations and corresponding Qs (3) Half Power frequency

[7 marks]

List the applications of Operational tranconductance amplifier. Explain its application as a current controlled Integrator

[7 marks]

Integrated Circuits and Applications — Summer 2018

Questions17

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