Linear Integrated Circuits Questions and Answers
Q1.
How does the open loop op-amp configuration classified?
Answer :
Based on the input applied
Q2.
A feedback amplifier is also called as
Answer :
Closed loop amplifier
Q3.
Why the feedback circuit is said to be negative for voltage series feedback amplifier?
Answer :
Feedback voltage is 180 degree out of phase with respect to input voltage
Q4.
What is the gain of voltage follower?
Answer :
Gain –>1
Q5.
The inverting input inverting of the voltage shunt feedback resistor is a commonly named as
Answer :
Virtual ground
Q6.
The gain of differential amplifier with one op-amp is same as that of
Answer :
The inverting amplifier
Q7.
What happens due to mismatch between two input terminals in an op-amp?
Answer :
Output offset voltage
Q8.
What will the condition of op-amp, before applying any external input
Answer :
Balanced
Q9.
Why closed loop differential amplifiers are difficult to null?
Answer :
Due to compensating network
Q10.
Mention a step to reduce the output offset voltage caused due to input bias current?
Answer :
Use small feedback resistors
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