1
GATE ECE 2024
MCQ (Single Correct Answer)
+2
-1.33
A full scale sinusoidal signal is applied to a 10-bit ADC. The fundamental signal component in the ADC output has a normalized power of 1 W, and the total noise and distortion normalized power is 10 $\mu$W. The effective number of bits (rounded off to the nearest integer) of the ADC is _______.
2
GATE ECE 2022
Numerical
+2
-0
Consider the circuit shown with an ideal OPAMP. The output voltage V0 is __________ V (rounded off to two decimal places).
Your input ____
3
GATE ECE 2021
Numerical
+2
-0
An 8-bit unipolar (all analog output values are positive) digital-to-analog converter (DAC) has a full-scale voltage range from 0 V to 7.68 V . If the digital input code is 10010110 (the leftmost bit is MSB). Then the analog output voltage of the DAC (rounded off to one decimal place) is
$\_\_\_\_$ V.
Your input ____
4
GATE ECE 2016 Set 2
MCQ (Single Correct Answer)
+2
-0.6
In an N bit flash ADC, the analog voltage is fed simultaneously to 2N− 1 comparators. The
output of the comparators is then encoded to a binary format using digital circuits. Assume that
the analog voltage source Vin(whose output is being converted to digital format) has a source
resistance of 75 Ω
as shown in the circuit diagram below and the input capacitance of each comparator is 8 pF. The input must settle to an accuracy of 1/2 LSB even for a full scale input change for properconversion. Assume that the time taken by the thermometer to binary
encoder is negligible.
If the flash ADC has 8 bit resolution, which one of the following alternatives is closest to the maximum sampling rate?
If the flash ADC has 8 bit resolution, which one of the following alternatives is closest to the maximum sampling rate?GATE ECE Subjects
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