1
GATE ECE 2023
Numerical
+2
-0.67
A sample and hold circuit is implemented using a resistive switch and a capacitor with a time constant of 1 $$\mu$$s. The time for the sampling switch to stay closed to charge a capacitor adequately to a full scale voltage of 1 V with 12-bit accuracy is ___________ $$\mu$$s (rounded off to two decimal places).
Your input ____
2
GATE ECE 2022
MCQ (Single Correct Answer)
+2
-0.67
A circuit with an ideal OPAMP is shown. The Bode plot for the magnitude (in dB) of the gain transfer function (Av(j$$\omega$$) = Vout(j$$\omega$$)/Vin(j$$\omega$$)) of the circuit is also provided (here, $$\omega$$ is the angular frequency in rad/s). The values of R and C are __________.
3
GATE ECE 2017 Set 2
Numerical
+2
-0
In the voltage reference circuit shown in the figure, the op-amp is ideal and the transistors Q1,
Q2,….., Q32 are identical in all respects and have infinitely large values of common – emitter
current gain $$\beta $$. The collector current (IC) of the transistors is related to their base emitter voltage (VBE) by the relation IC = IS exp (VBE/VT); where Is is the saturation current. Assume that the
voltage VP shown in the figure is 0.7 V and the thermal voltage VT=26mV
The output voltage Vout (in volts) is _____.
Your input ____
4
GATE ECE 2017 Set 1
Numerical
+2
-0
The amplifier circuit shown in the figure is
implemented using a compensated operational
amplifier (op-amp), and has an open-loop voltage
gain, A0 105 V/V and an open-loop cut-off frequency, fC = 8 Hz. The voltage gain of the amplifier
at 15 kHz, in V/V, is __________.
Your input ____
Questions Asked from Operational Amplifier (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE 2024 (2)
GATE ECE 2023 (2)
GATE ECE 2022 (1)
GATE ECE 2017 Set 2 (1)
GATE ECE 2017 Set 1 (1)
GATE ECE 2016 Set 1 (2)
GATE ECE 2016 Set 3 (1)
GATE ECE 2016 Set 2 (2)
GATE ECE 2015 Set 3 (1)
GATE ECE 2015 Set 2 (2)
GATE ECE 2015 Set 1 (2)
GATE ECE 2014 Set 1 (2)
GATE ECE 2014 Set 3 (1)
GATE ECE 2013 (1)
GATE ECE 2012 (1)
GATE ECE 2008 (3)
GATE ECE 2007 (4)
GATE ECE 2006 (1)
GATE ECE 2005 (4)
GATE ECE 2004 (1)
GATE ECE 2003 (3)
GATE ECE 2001 (3)
GATE ECE 2000 (1)
GATE ECE 1997 (1)
GATE ECE 1993 (1)
GATE ECE 1992 (3)
GATE ECE 1990 (3)
GATE ECE 1989 (1)
GATE ECE 1988 (1)
GATE ECE 1987 (1)
GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Communications
Electromagnetics
General Aptitude