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Digital Electronics - Interfacing to the Analog World

Exercise : Interfacing to the Analog World - General Questions
21.
What is the conversion time of a flash converter?
20 s
10 s
1 s
The conversion takes place continuously.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
What is the speed of the up/down digital-ramp ADC (tracking ADC)?
20 s
10 s
1 s
Relatively slow
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The practical use of binary-weighted digital-to-analog converters is limited to:
R/2R ladder D/A converters
4-bit D/A converters
8-bit D/A converters
op-amp comparators
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
What is the major advantage of the R/2R ladder DAC as compared to a binary-weighted-input DAC?
It has fewer parts for the same number of inputs.
It is much easier to analyze its operation.
It uses only two different resistor values.
The virtual ground is eliminated and the circuit is therefore easier to understand and troubleshoot.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
An analog-to-digital converter has a four-bit output. How many analog values can it represent?
4
1/4
16
0.0625
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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