III-B.Tech II-Semester Supplementary Examination December2002/January 2003 LINEAR DIGITAL I.C.APPLICATIONS (Common to Electronics and Communication Engineering, Electronics and Control Engineering, Electronics Instrumentation Engineering, Bio-Medical Engineering, Mechatronics) Time: 3 Hours Max. Marks:70 Answer any Five questions All questions carry equal marks ---
Explain the different stages used in a typical operational amplifier. Define and explain the terms. Frequency compensation, slew rate, Input offset voltage and Input offset current.
2.
Explain how OP-AMP can be used in the following applications. (i) Rectifiers (ii) Logarithmic Amplifiers (iii) Peak defector
3.a) b)
Draw the circuit for monostable operation using 555 and explain the same. Draw the circuit of linear saw tooth wave generator and explain the same.
4.a)
What are the general features of three terminal regulators. How do you obtain adjustable output with these regulators. Explain any two applications of PLL.
5.a) b)
Draw the circuits of a first order and second order low pass filters and explain the same. Design a first order low pass filter with a cut off frequency of 2 KHZ with a pass band gain of 2. Explain the terms: Noise Margin, Noise immunity, Fan out, Fan in and propagation delay. Compare the different logic families.
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1.a) b)
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Explain the following in detail. (i) Ramp type A/D conversion (ii) Integration technique of A/D conversion (iii) D/A converter.
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7.
8.
Write notes on (i) Instrumentation amplifier (ii) IC 1496 Balanced modulator. *******
Code No: 320452. III-B.Tech II-Semester Supplementary Examination December2002/January 2003 · LINEAR DIGITAL I.C.APPLICATIONS · (Common to Electronics and Communication Engineering, · Electronics and Control Engineering, Electronics Instrumentation · Engineering, Bio-Medical Engineering, Mechatronics).
Code No.320452. III B.Tech. II-Semester Supplementary Examinations, November-2003 · LINEAR DIGITAL I.C. APPLICATIONS · (Common to Electronics and Communication Engineering, Electronics and · Instrumentation Engineering, Bio-Medical Engineering, Mecho
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