Explore topic-wise MCQs in Linear Integrated Circuit.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Linear Integrated Circuit knowledge and support exam preparation. Choose a topic below to get started.

1.

A 7.5kΩ internal resistor and a 12kΩ feedback resistor are connected to an inverting amplifier. Find the error voltage, if the output voltage is 3.99mv for an input of 1.33mv.$

A. ±0.6v
B. ±0.6mv
C. ± 60mv
D. ±6mv
Answer» E.
Discussion
2.

The error voltage in a compensating inverting amplifier is obtained by

A. Multiplying ‚ñ≥T to total output offset voltage
B. Multiplying ‚ñ≥T to input offset voltage
C. Multiplying ‚ñ≥T to input offset current
D. All of the mentioned
Answer» B. Multiplying ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢T to input offset voltage
Discussion
3.

How the effect of voltage and current drift on the performance of an amplifier is determined?

A. ‚ñ≥V<sub>ooT</sub>/‚ñ≥T = {[1-R<sub>F</sub>/R<sub>1</sub>)]√ó(‚ñ≥V<sub>io</sub>/‚ñ≥T)} + R<sub>F</sub>√ó(‚ñ≥I<sub>io</sub>/‚ñ≥t)
B. ‚ñ≥V<sub>ooT</sub>/‚ñ≥T = {(-R<sub>F</sub>/R<sub>1</sub>)√ó(‚ñ≥V<sub>io</sub>/‚ñ≥T)} + R<sub>F</sub>√ó(‚ñ≥I<sub>io</sub>/‚ñ≥t)
C. ‚ñ≥V<sub>ooT</sub>/‚ñ≥T = {[1+(R<sub>F</sub>/R<sub>1</sub>)]√ó(‚ñ≥V<sub>io</sub>/‚ñ≥T)} + R<sub>F</sub>√ó(‚ñ≥I<sub>io</sub>/‚ñ≥t)
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
4.

A completely compensated inverting amplifier is nulled at room temperature 25oC, determine the temperature at which the total output offset voltage will be zero?

A. 50<sup>o</sup>C
B. 25<sup>o</sup>C
C. 75<sup>o</sup>C
D. 125<sup>o</sup>C
Answer» C. 75<sup>o</sup>C
Discussion
5.

Thermal voltage drift is defined as

A. ‚ñ≥V<sub>io</sub>/‚ñ≥T
B. ‚ñ≥V<sub>F</sub>/‚ñ≥T
C. ‚ñ≥I<sub>io</sub>/‚ñ≥T
D. ‚ñ≥I<sub>B</sub>/‚ñ≥T
Answer» B. ‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢V<sub>F</sub>/‚Äö√Ñ√∂‚àö¬±‚Äö√¢‚Ä¢T
Discussion
6.

Which factor affect the input offset voltage, bias current and input offset current in an op-amp

A. Change in temperature
B. Change in supply voltage
C. Change in time
D. All of the mentioned
Answer» E.
Discussion