Linear Integrated Circuits Questions and Answers
Q1.
Which filter attenuates any frequency outside the pass band?
Answer :
Band-pass filter
Q2.
A narrow band-reject filter is commonly called as
Answer :
Notch filter
Q3.
What is Barkhausen criterion for oscillation?
Answer :
Aß = 1
Q4.
Why it is difficult to maintain Barkhausen condition for oscillation?
Answer :
1. Due to variation in temperature
2. Due to variation in supply voltage
3. Due to variation in components life time
Q5.
The condition for zero phase shift in wein bridge oscillator is achieved by
Answer :
Balancing the bridge
Q6.
What is the possible method used in Quadrature oscillator to remove distortion from the output waveform?
Answer :
Replace the resistor at the input of non-inverting type amplifier with a potentiometer
Q7.
An IC function generator can allow the signals for
Answer :
1. Amplitude Modulation (AM)
2. Frequency Modulation (FM)
3. Frequency Shift Keying (FSK)
Q8.
The value of series resistance in the square wave generator should be 100kΩ or higher in order to
Answer :
Prevent excessive differential current flow
Q9.
Triangular wave form has
Answer :
Rise time = fall time
Q10.
How to obtain high rate of accuracy in comparator?
Answer :
1. Input offset
2. High voltage gain
3. High CMRR
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