JNTU
JNTU B.Tech III LINEAR AND DIGITAL IC APPLICATIONS Previous Question Paper (May - 2018 - R13)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
List the AC characteristics of op-amp.
Answer
The AC characteristics of an op-amp include frequency response, slew rate, and gain bandwidth product.
What are the different features of IC 723?
Answer
The IC 723 features include high output current (up to 150mA), adjustable output voltage range from 2V to 37V, low standby current drain, and built-in current limiting and thermal shutdown protection.
What is the significance of VCO in PLL?
Answer
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Compare active and passive filters.
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What are the applications of ADC?
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An 8 bit D/A converter as a resolution of 8mV/bit. Find the analog output voltage for the input 10111010.
Answer
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Which IC is used as BCD code converter?
Answer
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How to drive CMOS gate to TTL gate?
Answer
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How to convert JK flip-flop to D flip flop?
Answer
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List different types of memories.
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Part B
Explain the working of Non-Inverting amplifier and derive the equation of its Gain.
Answer
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How op-amp is used as a differentiator? Explain.
Answer
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Explain the working of a Schmitt trigger with neat circuit diagram.
Answer
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How op-amp is used for comparator? Explain its working.
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Design an active high pass filter with cutoff frequency of 4KHz.
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How to generate a sawtooth wave form? Explain the working of such a circuit with neat circuit diagram.
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Draw the functional block diagram of 565IC and explain its working.
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Explain the working of an Astable multivibrator using IC555 with circuit diagram.
Answer
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Explain the working of R-2R ladder DAC with neat circuit diagram and write its limitations.
Answer
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Explain the working of dual slope ADC with neat circuit diagram and compare its performance with other ADC.
Answer
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Design a driving circuit for LED and which 74XX series IC is used for it.
Answer
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Design a Priority encoder circuit and which 74XX series IC is used for it.
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Design a synchronous counter using 74XX ICs and explain its working with neat timing waveforms.
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Design a decode counter using Jk-Flip-Flops.
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