Integrated Circuits MCQs: Electronics Engineering MCQs

Integrated Circuits MCQs. This section includes 15 Multiple Choice Questions on the topic Integrated Circuits in Electronics Engineering.


Integrated Circuits MCQs



In a linear IC voltage regulator, the series pass transistor always operates in the ______ region ??

a. Active
b. Saturation
c. Cut-off
d. All of the above


Switching regulators are series type regulators, which has ______ power dissipation & ______ efficiency ??

a. increased, increased
b. increased, reduced
c. reduced, increased
d. reduced, reduced


The % load regulation of a power supply should be ideally ________ & practically _______ ??

a. zero, small
b. small, zero
c. zero, large
d. large, zero


Which performance parameter of a regulator is defined as the change in regulated load voltage due to variation in line voltage in a specified range at a constant load current ??

a. Load regulation
b. Line regulation
c. Temperature stability factor
d. Ripple rejection


Which among the following factors affect/s the output voltage of a regulated power supply ??

a. Load current
b. Input voltage
c. Temperature
d. All of the above





In PLL, the capture range is always _________ the lock range ??

a. Greater than
b. Equal to
c. Less than
d. None of the above


Once the phase is locked, the PLL tracks the variation in the input frequency. This indicates that ??

a. Output frequency changes by the same amount as that of input frequency
b. Output frequency does not change as that of input frequency
c. There is no relation between input & output frequencies
d. None of the above


In the locked state of PLL, the phase error between the input & output is ??

a. Maximum
b. Moderate
c. Minimum
d. All of the above


In communication circuits, PLL is currently applicable for ??

a. Demodulation applications
b. Tracking a carrier or synchronizing signal
c. Both a and b
d. None of the above


Basically, PLL is used to lock ??

a. Its output frequency
b. Phase to the frequency
c. The phase of the input signal
d. All of the above


Integrated Circuits MCQs



Offset error is basically defined as the non-zero level of analog output especially when all the digital inputs are ??

a. 0
b. 1
c. Both a and b
d. None of the above


In DACs, which type of error/s specify/ies the amount by which the actual output of DAC differs from ideal straight-line transfer characteristics ??

a. Linearity error
b. Offset error
c. Gain error
d. All of the above


Which among the following characteristics of D/A converter occur/s due to resistor and semiconductor aging ??

a. Speed
b. Settling time
c. Long-term drift
d. Supply rejection


In DAC, resolution increases with the _________ in number of bits ??

a. Increase
b. Decrease
c. Constant
d. None of the above


In weighted resistor DAC, how many resistor/s per bit is/are required ??

a. One
b. Two
c. Three
d. Four


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