List of top Digital Electronics Questions asked in GATE Instrumentation Engineering

A 1.3 digit digital voltmeter has a specified accuracy of \( \pm (0.5% \, {of reading} + 1 \, {digit}) \). If it is used to measure a 10 V DC voltage, the error in the measurement would be:
The 4-bit signed 2’s complement form of \( (-5)_{10} + (-5)_{10} \) is:

The minimized expression of the Boolean function Y(P, Q, R) implemented by the multiplexer (MUX) circuit shown in the figure is:


 

A dual-slope ADC has a fixed integration time of 100 ms. The reference voltage of the ADC is \(-5 \, {V}\). The time taken by the ADC to measure an input voltage of \(1.25 \, {V}\) is ________ ms (rounded off to the nearest integer).
A Boolean function \( X \) is given as \( X = AB + AC \). The reduced form of \( X \) is: