B3E039S Pages: 2
PART E

Answer any 4 questions.

. Explain any 3 applications of an opamp. (10)
Explain Weinbridge oscillator using opamp. (10)
. Explain Sample and hold circuit. (10)
. Using 555 timer, Explain the operation of monostable multivibrator with necessary
waveforms. (10)
. Explain the following: (10)
a) Flash type ADC

b) Successive approximation type ADC
. Explain the concept of Binary weighted resistor DAC. What are its drawbacks? In a

10 bit DAC, Reference voltage is given as 15%, Find analog output for digital input of
1011011001. (10)

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