1
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
In the following circuit, the comparator output is logic “I” if V1 > V2 and is logic “0” otherwise. The D/A conversion is done as per the relation
$$${V_{DAC}} = \sum\limits_{n = 0}^3 {{2^{n - 1}}{b_n}\,\,} Volts,$$$
where b3(MSB), b2, b1 and b0 (LSB) are the counter outputs.
The counter starts from the clear state.

The magnitude of the error between VDAC and Vin at steady state in volts is
2
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
In the digital-to-Analog converter circuit shown in the figure below,
$${V_{R\,}}\, = \,10V$$ and $$R\, = \,10k\Omega $$
$${V_{R\,}}\, = \,10V$$ and $$R\, = \,10k\Omega $$

The current i is
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
In the digital-to-Analog converter circuit shown in the figure below,
$${V_{R\,}}\, = \,10V$$ and $$R\, = \,10k\Omega $$
$${V_{R\,}}\, = \,10V$$ and $$R\, = \,10k\Omega $$

The voltage V0 is
4
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
A 4-bit D/A converter is connected to a free-running 3-bit UP counter, as shown in the following figure. Which of the following waveforms will be observed at V0=?

In the figure shown above, the ground has been shown by the symbol $$\nabla $$
Questions Asked from Analog to Digital and Digital to Analog Converters (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics