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08000CS207122001

PART E

Answer any four full questions, each carries 10 marks.
List important specifications of A/D or D/A Converters.
Design a Summing amplifier and subtractor circuit using OP-Amp for two
inputs.
Give the ideal characteristics of an OP-Amp. What are their typical values for
10741 OP-Amp.
Draw the figure of an operational amplifier integrator and prove that the output is
proportional to integral of the input.
Design a Wien bridge oscillator circuit using OP-Amp for a frequency of
oscillation, 2K Hz.
With the help of necessary figures, explain about fastest type ADC.
Draw the block schematic of Successive Approximation type analog to digital
converter and explain its working.
Design an Astable Multivibrator using IC 555 for a frequency of 1 KHz anda
duty cycle of 40%
Realise an active first order high pass filters using OP-Amps for a lower cut off
frequency of 3 KHz and a pass band gain of 3.
Design a regenerative comparator circuit with UTP= 2۷ and LTP= -3V. Assume
input voltage is 10999. Also mention Hysteresis window.
Describe: (1) Slew rate, (2) CMRR, (3) Offset voltage (4) Offset current
Describe the working of a binary weighted D/A Converter, with necessary

diagrams. What are its limitations?

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