December 17, 2011

LINEAR IC APPLICATIONS JNTU previous years question papers


LINEAR IC APPLICATIONS JNTU previous years question papers


Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain how large open circuit voltage gain of an op - amp can be obtained by using cascading of differential amplifier stages.
(b) Explain ac analysis of differential amplifier. [8+8]
2. (a) Define the following for a given op - amp.
i. CMRR
ii. PSRR
iii. Slew rate
iv. Input Offset voltage.
(b) Discuss the Pole - Zero and Dominant pole compensation techniques for an op - amp. [8+8]
3. (a) Design a differentiator to differentiate an input signal that varies in frequency from 10 Hz to about 1KHz. If a sine wave of 1V peak at 1000 Hz is applied to this differentiator draw the output waveforms.
(b) Why active differentiator circuits are not used in analog computer to solve differential equations. [10+6]
4. (a) What is a precision diode?
(b) Draw the circuit of a negative peak clamper and explain its operation with necessary waveforms.
(c) Explain the functioning of a peak detector with necessary diagrams. [2+8+6]
5. (a) Explain the term “VSVS configuration”. Design a VCVS low pass Butterworth second order filter with a cutoff frequency of 4kHz. Assume necessary data in the design process.
(b) What is meant by all pass filter? Draw the circuit of it. [10+6]
6. (a) Configure a 555 timer as a Schmitt trigger and explain.
(b) Explain frequency translation and FSK demodulation using 565 PLL. [8+8]
7. (a) Describe the transfer characteristic of a Digital to Analog Converter.
(b) Explain the Performance specifications of a Digital to Analog converter.
(c) Mention the different types of Analog to digital converters. [4+8+4]
8. (a) Explain different applications of multiplier circuits.(b) What is analog switch? Explain the different analog switches with suitable
diagrams. 

Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain how large open circuit voltage gain of an op - amp can be obtained by using cascading of differential amplifier stages.
(b) Explain ac analysis of differential amplifier. [8+8]
2. (a) Define the following for a given op - amp.
i. CMRR
ii. PSRR
iii. Slew rate
iv. Input Offset voltage.
(b) Discuss the Pole - Zero and Dominant pole compensation techniques for an op - amp. [8+8]
3. (a) Design a differentiator to differentiate an input signal that varies in frequency from 10 Hz to about 1KHz. If a sine wave of 1V peak at 1000 Hz is applied to this differentiator draw the output waveforms.
(b) Why active differentiator circuits are not used in analog computer to solve differential equations. [10+6]
4. (a) What is a precision diode?
(b) Draw the circuit of a negative peak clamper and explain its operation with necessary waveforms.
(c) Explain the functioning of a peak detector with necessary diagrams. [2+8+6]
5. (a) Explain the term “VSVS configuration”. Design a VCVS low pass Butterworth second order filter with a cutoff frequency of 4kHz. Assume necessary data in the design process.
(b) What is meant by all pass filter? Draw the circuit of it. [10+6]
6. (a) Configure a 555 timer as a Schmitt trigger and explain.
(b) Explain frequency translation and FSK demodulation using 565 PLL. [8+8]
7. (a) Describe the transfer characteristic of a Digital to Analog Converter.
(b) Explain the Performance specifications of a Digital to Analog converter.
(c) Mention the different types of Analog to digital converters. [4+8+4]
8. (a) Explain different applications of multiplier circuits.(b) What is analog switch? Explain the different analog switches with suitable
diagrams.

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