Electronics - Analog and Digital Converters

Why Electronics Analog and Digital Converters?

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Exercise :: Analog and Digital Converters - General Questions

1. 

Which of the following is a type of error associated with digital-to-analog converters (DACs)?

A. nonmonotonic error
B. incorrect output codes
C. offset error
D. nonmonotonic and offset error

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

2. 

A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 0101.

A. 0.3125 V
B. 3.125 V
C. 0.78125 V
D. –3.125 V

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

3. 

A binary-weighted digital-to-analog converter has an input resistor of 100 komega.gif. If the resistor is connected to a 5 V source, the current through the resistor is:

A. 50 mu.gifA
B. 5 mA
C. 500 mu.gifA
D. 50 mA

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

What is the resolution of a digital-to-analog converter (DAC)?

A. It is the comparison between the actual output of the converter and its expected output.
B. It is the deviation between the ideal straight-line output and the actual output of the converter.
C. It is the smallest analog output change that can occur as a result of an increment in the digital input.
D. It is its ability to resolve between forward and reverse steps when sequenced over its entire range.

Answer: Option C

Explanation:

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5. 

The practical use of binary-weighted digital-to-analog converters is limited to:

A. R/2R ladder D/A converters
B. 4-bit D/A converters
C. 8-bit D/A converters
D. op-amp comparators

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.