Explore topic-wise MCQs in Linear Integrated Circuit.

This section includes 10 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.

FOR_VD_>_±4VT,_THE_FUNCTION_OF_DIFFERENTIAL_AMPLIFIER_WILL_BE?$#

A. Switch
B. Limiter
C. Automatic gain control
D. Linear Amplifier
Answer» C. Automatic gain control
Discussion
2.

Change_in_value_of_common_mode_input_signal_in_differential_pair_amplifier_make$

A. Change in voltage across collector
B. Slight change in collector voltage
C. Collector voltage decreases to zero
D. None of the mentioned
Answer» B. Slight change in collector voltage
Discussion
3.

A_differential_amplifier_has_a_transistor_with_β0=_100,_is_biased_at_ICQ_=_0.48mA._Determine_the_value_of_CMRR_and_ACM,_if_RE_=7.89kΩ_and_RC_=_5kΩ.$

A. 49.54 db
B. 49.65 d
C. 49.77 db
D. 49.60 db
Answer» C. 49.77 db
Discussion
4.

At what condition differential amplifier function as a switc?

A. 4V<sub>T</sub> < V<sub>d</sub> < -4V<sub>T</sub>
B. -2V<sub>T</sub> ≤ V<sub>d</sub> ≤ 2V<sub>T</sub>
C. 0 ≤ V<sub>d</sub> < -4V<sub>T</sub>
D. 0 ≤ V<sub>d</sub> ≤ 2V<sub>T</sub>
Answer» B. -2V<sub>T</sub> ‚Äö√Ñ√∂‚àö¬¢¬¨√ü V<sub>d</sub> ‚Äö√Ñ√∂‚àö¬¢¬¨√ü 2V<sub>T</sub>
Discussion
5.

What will be the emitter current in a differential amplifier, where both the transistor are biased and matched? (Assume current to be IQ)

A. I<sub>E</sub> = I<sub>Q</sub>/2
B. I<sub>E</sub> = I<sub>Q</sub>
C. I<sub>E</sub> = (I<sub>Q</sub>)<sup>2</sup>/2
D. I<sub>E</sub> = (I<sub>Q</sub>)<sup>2</sup>
Answer» B. I<sub>E</sub> = I<sub>Q</sub>
Discussion
6.

Which of the following is not preferred for input stage of Op-amp?

A. Dual Input Balanced Output
B. Differential Input Single ended Output
C. Cascaded DC amplifier
D. Single Input Differential Output
Answer» D. Single Input Differential Output
Discussion
7.

What is the purpose of differential amplifier stage in internal circuit of Op-amp?

A. Low gain to differential mode signal
B. Cancel difference mode signal
C. Low gain to common mode signal
D. Cancel common mode signal
Answer» E.
Discussion
8.

How a symmetrical swing is obtained at the output of Op-amp

A. Providing amplifier with negative supply voltage
B. Providing amplifier with positive voltage
C. Providing amplifier with positive& negative voltage
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
9.

The purpose of level shifter in Op-amp internal circuit is to

A. Adjust DC voltage
B. Increase impedance
C. Provide high gain
D. Decrease input resistance
Answer» B. Increase impedance
Discussion
10.

Which is not the internal circuit of operational amplifier?

A. Differential amplifier
B. Level translator
C. Output driver
D. Clamper
Answer» E.
Discussion