Digital Signal Processing - General Questions (2)

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Digital Signal Processing - General Questions

Which A/D conversion method has a fixed conversion time?

A.	Single-slope analog-to-digital converter
B.	Dual-slope analog-to-digital converter
C.	Digital-ramp analog-to-digital converter
D.	Successive-approximation analog-to-digital converter

Answer: Option D

Explanation:

No answer description available for this question.

10.

What is the result of taking more samples during the quantization process?

A.	More errors in the analog-to-digital conversion
B.	More bit requirements
C.	More accurate signal representation
D.	More bit requirements and more accurate signal representation

Answer: Option D

Explanation:

No answer description available for this question.

11.

In a 4-bit R/2R ladder digital-to-analog converter, because of negative feedback, the operational amplifier keeps the inverting (minus) input near ________.

A.	5 volts
B.	zero volts
C.	a voltage determined by the binary weighted input
D.	none of the above

Answer: Option B

Explanation:

No answer description available for this question.

12.

In a digital reproduction of an analog curve, accuracy can be increased by ________.

A.	sampling the curve more often
B.	sampling the curve less often
C.	decreasing the number of bits used to represent each sampled value
D.	all of the above

Answer: Option A

Explanation:

No answer description available for this question.

13.

In troubleshooting a DAC, we check its performance characteristics, such as ________.

A.	nonmonotonicity
B.	differential nonlinearity
C.	low and high gain
D.	all of the above

Answer: Option D

Explanation:

No answer description available for this question.

14.

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 ________.

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

Answer: Option B

Explanation:

No answer description available for this question.

15.

Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds to the signal level?

A.	Successive approximation
B.	Sigma-delta
C.	Dual-slope
D.	None of the above

Answer: Option B

Explanation:

No answer description available for this question.

16.

The resolution of a 6-bit DAC is ________.

A.	63%
B.	64%
C.	15.9%
D.	1.59%

Answer: Option D

Explanation:

No answer description available for this question.

Digital Signal Processing - General Questions (2)

Digital Signal Processing - General Questions

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