STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Draw the block diagram of op-amp and explain the function
of each block in detail
6 M
1 (b)
Compare different types of op-amp technologies.
3 M
1 (c)
Explain the effect of temperature on:
(i) Input Bias Current
(ii) Input Offset Voltage
(iii) Input Resistance
(i) Input Bias Current
(ii) Input Offset Voltage
(iii) Input Resistance
3 M
2 (a)
Find the Q-point VC and IB for dual input balanced output differential amplifier when, RE=RC=65 KΩ. Assume IE=IC, β=100 for both transistors Q1 and Q2; VS=± 12 V.
6 M
2 (b)
What is the need of frequency compensation? Explain any one method of frequency compensation.
6 M
Answer any one question from Q3 and Q4
3 (a)
Design a lossy integrator with square wave input of 2 Vp-p and 5 Khz frequency. Draw input and output waveforms.
6 M
3 (b)
Explain with a neat circuit diagram working of symmetric Schmitt trigger using op-amp. Also derive the equation for the trigger points.
6 M
4 (a)
Design an adder using op-amp to get output expression as:
V0= - (2V1 + 3V2+5V3) Where V1, V2 and V3 are inputs.
V0= - (2V1 + 3V2+5V3) Where V1, V2 and V3 are inputs.
6 M
Answer any one question from Q5 and Q6
5 (a)
With a neat circuit diagram, explain voltage to frequency
Converter.
5 M
5 (b)
Write a short note on Binary weighted Digital to Analog Converter (DAC).
5 M
5 (c)
What output voltage would be produced by a D/A converter whose output range is 0 to 10 V and input binary number is:
(i) 10 (for a 2-bit DAC converter)
(ii) 0110 (for a 4-bit DAC)
(iii) 10111100 (for a 8-bit DAC).
(i) 10 (for a 2-bit DAC converter)
(ii) 0110 (for a 4-bit DAC)
(iii) 10111100 (for a 8-bit DAC).
3 M
6 (a)
Write a short note on Flash type Analog to Digital Converter.
5 M
6 (b)
What are the different types of V to I converter. Explain any one.
5 M
6 (c)
List various specification of ADC.
3 M
Answer any one question from Q7 and Q8
7 (a)
With the help of neat block diagram explain operation of PLL.
5 M
7 (b)
What is the need of current boosting circuit ? Explain with the help of any one circuit.
5 M
7 (c)
Draw block diagram of frequency multiplier. Draw input-output waveforms.
3 M
8 (a)
For PLL circuit shown in Fig. 1, calculate the following:
(i) Free running frequency
(ii) Lock range
(iii) Capture range
(i) Free running frequency
(ii) Lock range
(iii) Capture range
6 M
8 (b)
Write a short note on practical voltage regulator using LM317.
5 M
8 (c)
Explain the following terms:
(i) Load Regulation
(ii) Line Regulation
(i) Load Regulation
(ii) Line Regulation
2 M
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