1
GATE ECE 1999
MCQ (Single Correct Answer)
+1
-0.3
The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at
A
5 Hz
B
10 KHz
C
1 MHz
D
100 MHz
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
In a differential Amplifier, CMRR can be improved by using an increased
A
Emitter resistance
B
Collector resistance
C
Power supply voltage
D
Source resistance
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
One input terminal of high gain comparator circuit is connected to ground and a sinusoidal voltage is applied to the other input. The output of comparator will be
A
a sinusoid
B
a full rectified sinusoid
C
a half rectified sinusoid
D
a square wave
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
An Amplifier a has 6 dB gain and 50 $$\Omega $$ input and output impedances. The noise figure of this Amplifier as shown in the figure is 3 dB. A cascade of two such Amplifiers as in the figure will have a noise figure of GATE ECE 1997 Analog Circuits - Operational Amplifier Question 85 English 1 GATE ECE 1997 Analog Circuits - Operational Amplifier Question 85 English 2
A
6 dB
B
8 dB
C
12 dB
D
none of the above
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