JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III Year LINEAR IC APPLICATIONS Previous Question Paper (May - 2018 - R13)
Note: This question paper contains two parts A and B. 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 advantage of integrated circuit over discrete component circuit.
Answer
Integrated circuits offer significantly smaller size and lower power consumption compared to discrete component circuits. Additionally, they provide higher reliability and lower cost due to batch fabrication processes.
Classify the IC’s on the basis of devices used and circuit complexity.
Answer
IC's are classified based on devices used into Monolithic ICs (all components on a single chip) and Hybrid ICs (combination of monolithic and discrete components). Based on circuit complexity, they are classified as SSI (Small Scale Integration), MSI (Medium Scale Integration), LSI (Large Scale Integration), VLSI (Very Large Scale Integration), and ULSI (Ultra Large Scale Integration).
What are the advantages of the three stage op amp instrumentation amplifier?
Answer
Sign in to view the complete answer paper.
State the limitations of an ideal differentiator.
Answer
Sign in to view the complete answer paper.
List the characteristics of a Butterworth filter.
Answer
Sign in to view the complete answer paper.
Determine the order of low pass Butterworth filter that is to provide 40dB attenuation at ω/ωh=2.
Answer
Sign in to view the complete answer paper.
Discuss the importance of the control voltage pin 5 of timer 555.
Answer
Sign in to view the complete answer paper.
Define Capture range, Lock range and pull in time.
Answer
Sign in to view the complete answer paper.
How many resistors are required in a 12 bit weighted resistor DAC?
Answer
Sign in to view the complete answer paper.
Give the conversion time for (i) counter type ADC and (ii) dual slope ADC.
Answer
Sign in to view the complete answer paper.
Part B
What is practical op-amp? Draw its equivalent circuit.
Answer
Sign in to view the complete answer paper.
Discuss the AC characteristics of an op-amp in brief.
Answer
Sign in to view the complete answer paper.
Discuss the meaning of the open loop and closed loop operation of an op amp.
Answer
Sign in to view the complete answer paper.
Explain the function of the building blocks of an op amp.
Answer
Sign in to view the complete answer paper.
Explain the difference between the AC and DC amplifiers.
Answer
Sign in to view the complete answer paper.
Design the op amp circuit which can give the output as
Answer
Sign in to view the complete answer paper.
Design a practical integrator circuit to properly process input sinusoidal waveforms up to 1 KHz. The input amplitude is 10 mV.
Answer
Sign in to view the complete answer paper.
Explain the operation of the sample and hold circuit.
Answer
Sign in to view the complete answer paper.
Design a fourth order Butterworth filter having upper cutoff frequency of 1 KHz.
Answer
Sign in to view the complete answer paper.
What is a notch filter? Draw practical notch filter and explain.
Answer
Sign in to view the complete answer paper.
Draw and explain the sawtooth wave generator.
Answer
Sign in to view the complete answer paper.
Compare the RC phase shift and wein bridge oscillator.
Answer
Sign in to view the complete answer paper.
Explain the block diagram of the VCO and discuss the each block.
Answer
Sign in to view the complete answer paper.
Estimate the values of timing elements to generate a time delay of 1 msec using IC555 timer as monostable multivibrator.
Answer
Sign in to view the complete answer paper.
Discuss the application of PLL as a frequency synthesizer.
Answer
Sign in to view the complete answer paper.
An astable multivibrator to be designed for getting rectangular waveform with tON=0.6 msec. Draw the circuit diagram with various component values also calculate the frequency of oscillations and duty cycle. Assume total time period (T) to be 1 msec.
Answer
Sign in to view the complete answer paper.
Discuss the specifications of the ADC and DAC.
Answer
Sign in to view the complete answer paper.
Why the R-2R ladder network DAC is better than weighted resistor DAC? Explain.
Answer
Sign in to view the complete answer paper.
Which is the fastest ADC? Explain its operation.
Answer
Sign in to view the complete answer paper.
Discus the applications of the D/A and F/V converters.
Answer
Sign in to view the complete answer paper.