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A differential amplifier is invariably used in the input stage of all OP-amps. This is dome basically to provide the OP-amps with a very high
A
CMRR
B
Bandwidth
C
Slew rate
D
Open-loop gain
Correct Answer:
CMRR
A differential amplifier is invariably used in the input stage of all OP-amps. This is done basically to provide the OP-amps with a very high
A
CMMR
B
Bandwidth
C
Slew rate
D
Open-loop gain
The maximum value of hoop compression in a dome is given by (where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome)
A
wR / 4d
B
wR/2d
C
wR/d
D
2wR/d
Read the following statements and mark your answer according to the given below.
1. For variable input APP = MPP in the first stage.
2. For variable input APP = MPP at the end of the 1
st
stage.
3. For variable input APP = MPP at the start of 2
nd
stage.
4. For variable input APP = MPP in the 2
nd
stage.
A
1 and 3
B
1 and 4
C
2 and 3
D
2 and 4
Introducing FET differential amplifier pair at the input stage of differential amplifier produces
A
High output resistance
B
High input resistance
C
Low input impedance
D
All of the mentioned
What is the total voltage gain of a high frequency response of differential amplifier if the gain of first stage is 10dB, gain of the second stage is 20dB and gain of third stage is 30dB?
A
60.32dB
B
50dB
C
60dB
D
50.32dB
What is the total voltage gain of a high frequency response of differential amplifier if input of first stage is 50V and the output of the second stage is 100V?
A
20
B
0.2
C
2.5
D
2
When the input of differential amplifier V1 = 0, then the differential amplifier is said to be operated in
A
Common mode
B
Differential mode
C
Non inverting mode
D
Inverting mode
The Common Mode Rejection Ratio (CMRR) of a differential amplifier using an operational amplifier is 100 dB. The output voltage for a differential input of 200 μV is 2 V. The common mode gain is
A
10 dB
B
0.1 dB
C
30 dB
D
10 dB
The figure shows the plot of y as a function of x
The function shown is the solution of the differential equation (assuming all initial conditions to be zero) is
A
$$\frac{{{{\text{d}}^2}{\text{y}}}}{{{\text{d}}{{\text{x}}^2}}} = 1$$
B
$$\frac{{{\text{dy}}}}{{{\text{dx}}}} = {\text{x}}$$
C
$$\frac{{{\text{dy}}}}{{{\text{dx}}}} = - {\text{x}}$$
D
$$\frac{{{\text{dy}}}}{{{\text{dx}}}} = \left| {\text{x}} \right|$$
What is the total voltage gain of a differential amplifier with active load if the gain of first stage is 10dB, gain of the second stage is 20dB and gain of third stage is 30dB?
A
60.32dB
B
50dB
C
60dB
D
50.32dB
