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Digital Electronics - Digital Signal Processing

Exercise : Digital Signal Processing - General Questions
11.
Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds to the signal level?
Successive approximation
Sigma-delta
Dual-slope
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
A binary-weighted-input digital-to-analog converter has an input resistor of 100 k. If the resistor is connected to a 5 V source, current through the resistor is ________.
50 mA
50 A
5 mA
500 A
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
In troubleshooting a DAC, we check its performance characteristics, such as ________.
nonmonotonicity
differential nonlinearity
low and high gain
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In a digital reproduction of an analog curve, accuracy can be increased by ________.
sampling the curve more often
sampling the curve less often
decreasing the number of bits used to represent each sampled value
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In a 4-bit R/2R ladder digital-to-analog converter, because of negative feedback, the operational amplifier keeps the inverting (minus) input near ________.
5 volts
zero volts
a voltage determined by the binary weighted input
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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