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Digital Electronics - Interfacing to the Analog World

Exercise : Interfacing to the Analog World - General Questions
6.
The main advantage of the successive-approximation A/D converter over the counter-ramp A/D converter is its:
more complex circuitry
less complex circuitry
longer conversion time
shorter conversion time
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.

What is the current in the feedback resistor for the circuit given below?

0.625 mA
1.25 mA
1.875 mA
1.625 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The quantization error in an analog-to-digital converter can be reduced by:
increasing the number of bits in the counter and DAC.
decreasing the number of bits in the counter and increasing the number of bits in the DAC.
increasing the number of bits in the counter and decreasing the number of bits in the DAC.
decreasing the number of bits in the counter and DAC.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
One disadvantage of the tracking A/D converter is:
that it requires two counters—one for up and one for down.
that the binary output will oscillate between two binary states when the analog input is constant.
the need for an accurate clock reference for the counter.
the need for a latch and its associated control circuit.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
If the range of output voltage of a 6-bit DAC is 0 to 15 volts, what is the step voltage of the output?
0.117 volt/step
0.234 volt/step
2.13 volts/step
4.26 volts/step
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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