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# EC8453 Important Questions Linear Integrated Circuits Regulation 2017 Anna University

## EC8453 Important Questions Linear Integrated Circuits

### Sample EC8453 Important Questions Linear Integrated Circuits

Define and explain slew rate. Derive its equation. Also explain method adapted to improving slew rate.

(i) Write down the characteristics and their respective values of an ideal operational amplifier.
(ii) Draw the circuit of basic current mirror and explain its operation. EC8453 Important Questions Linear Integrated Circuits

(i) Describe about output offset voltage. Explain methods to nullify offset voltage.
(ii) With neat circuit diagram, explain the operation of voltage reference circuit using temperature compensation.

(i) Discuss on current mirror with magnification.
(ii) Use appropriate block diagram, explain the general stages of an Op-Amp IC.

(i) What is input and output voltage and current offset? How are they compensated?
(ii) With a neat diagram derive the AC performance close loop characteristics of Op-amp to discuss on the circuit Bandwidth, Frequency response and slew rate. EC8453 Important Questions Linear Integrated Circuits

(i) Draw the circuit of basic current mirror and explain its operation.
(ii) Give the detail the DC analysis of a basic differential amplifier.

Obtain the expression for differential gain, common mode gain, CMRR, RI and RO of an emitter coupled differential amplifier.

(i) Sketch the Wilson current source and give short note about it. (ii) Using suitable diagram and necessary equations, explain the concept of Widlar current source used in op-amp circuit. EC8453 Important Questions Linear Integrated Circuits

Show the transfer characteristics of dual input differential amplifier showing the linear and limiting regions. Comment on the same.

 Subject name Linear Integrated Circuits Semester 4 Subject Code EC8453 Regulation 2017 regulation