Integrated Circuits Applications B.Tech Question Paper : vardhaman.org
College : Vardhaman College Of Engineering
Degree : B.Tech
Department : Electronics & Communication Engineering
Semester : V
Subject : Integrated Circuits Applications
Document type : Question Paper
Website : vardhaman.org
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June – 2014 :https://www.pdfquestion.in/uploads/vardhaman.org/6374-BT5S%20JUNE14.pdf
December – 2013 : https://www.pdfquestion.in/uploads/vardhaman.org/6374-BT5R11-DEC13.pdf
Integrated Circuits Applications Question Paper :
Four Year B. Tech V Semester Supplementary Examinations June – 2014
(Regulations : VCE-R11)
(Common to Electronics and Communication Engineering &
Electrical and Electronics Engineering)
Date : 14 June, 2014 FN
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Related / Similar Question Paper : Vardhaman B.Tech Machine Tools Question Paper
All parts of the question must be answered in one place only :
Unit – I :
1. a) Explain the following with respect to OP-AMP:
i. Internal Architecture
ii. Ideal and Typical Characteristics
iii. Offset Parameters 9M
b) What is slew rate and explain its significance in OP-AMP? If slew rate of an OP-AMP is0.5 V/µs and is connected as inverting amplifier with a gain of 5, what will be the bandwidth achieved? Explain. 6M
2. a) Draw the equivalent circuit and transfer characteristics of ideal OP-AMP and explain. 6M
b) Explain the following parameters and their measurement:
i. Vio
ii. Zin
iii. CMRR 9M
Unit – II :
3. a) Explain the operation of a sample and hold circuit. Design an OP-AMP differentiator that will differentiate an input signal with fmax=100 Hz, C1=0.01? F ? 9M
b) Explain the working of voltage to current converter. 6M
4. a) Discuss the operation of triangular waveform generator circuit. 8M
b) Discuss the operation of multiplier and divider. 7M
Unit – III :
5. a) Draw the circuit of a first order low pass Butterworth filter and derive the gain of the filter and also plot its frequency response. 9M
b) Design a second order low pass filter at a high cut-off frequency of 1KHz. Given C2=C3=0.0047? F.6M
6. a) Explain the operation of astable multivibrator using 555 timer? 10M
b) In an astable multivibrator, Ra=2.2k, Rb=3.9k, C=0.1? F. Determine the positive pulse width tc, negative pulse width td, and free running frequency fo. 5M
Unit – IV :
7. a) List and explain the specifications of DAC. 7M
b) With necessary design equations, show the design of adjustable voltage regulator using 78XX. List the advantages of three terminal regulators. 8M
8. a) Draw the block diagram of counter type ADC and explain its working. Give the comparison of different types of ADCs in terms of speed. 8M
b) With a neat circuit schematic, explain the working of regulator using OP-AMP. List the requirements of a good regulator. 7M
Unit – V :
9. a) Explain the switching action of a MOSFET. Draw the circuit of a CMOS NOR gate and explain its operation. 10M
b) Explain the working of a four-bit parallel adder. 5M
10. a) Define the following terms:
i. Noise Margin
ii. Power Dissipation
iii. Fan-out
iv. Speed-Power Product
v. Propagation Delay 7M
b) Explain the working of serial-in-serial-out shift register. 8M
B. Tech V Semester Regular Examinations, December – 2013 :
(Regulations: VCE-R11)
Integrated Circuits Applications :
(Common to Electronics and Communication Engineering & Electrical and Electronics Engineering)
Date : 7 December, 2013
Time : 3 Hours
Max. Marks : 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
Unit – 1 :
1. a) With a neat circuit diagram and suitable input and output waveforms, explain the working of a non-inverting and inverting Operational amplifier. 8M
b) Explain the following DC characteristics of an Op-amp: input offset current, input offset voltage and total output offset voltage. 7M
2. a) List any five ideal op-amp characteristics. 5M
b) In the basic differential amplifier, given Rc = 2KO, Re = 4.3KO, Vcc = |Vee| = 5V, ß0 = 200, Vbe = 0.7V. Determine for V1=V2=0, IBQ, ICQ, V01, V02, VCEQ, ADM, ACM, CMRR. 10M
Unit – 2 :
3. a) Explain the working of an Inverting summing amplifier and subtractor with a neat circuit diagram. 8M
b)Explain the working of a Logarithmic amplifier. 7M
4.a) With suitable input and output waveforms explain the working of an inverting and non-inverting Comparator. 9M
b) Explain the working of a Schmitt trigger with relevant input and output waveforms. 6M
Unit – 3 :
5. a) With a neat circuit diagram, explain the working principles of “ All Pass filter”. Mention its applications. 7M
b) List the applications of PLL. 4M
c) Design a pulse generator using 555 timer for pulse width TP = 1 ms. Draw the circuit with designed values. 4M
6. a) Design a second order butterworth high pass filter for the following specifications: AV = 5 ; fL= 1.5 KHz Draw the circuit diagram and insert the values. 8M
b) Draw the internal architecture of 555 timer and explain. 7M
Unit – 4 :
7. a) Draw the circuit schematic of a DC power supply showing rectifier with filter and a dc voltage regulator. Define the following performance parameters.
i. Line regulation
ii. Load regulation
iii. Ripple rejection 8M
b) With a neat circuit diagram of R-2R ladder DAC, obtain the expression for output voltage. 7M