Digital Signal Processing

Assume that in a certain 4-bit weighted ladder DAC, the input representing the most significant bit is applied to a 20 k

resistor. What is the size of the resistor that represents the least significant bit?

A:

2.5 k

B:

5 k

C:

80 k

D:

160 k

Answer: D

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The resolution of a DAC can be expressed as the ________.

A:

minimum output voltage

B:

number of bits that are converted to an analog output

C:

deviation of the output from a straight line

D:

difference between the expected and actual outputs

Answer: B

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The number of data lines on the GPIB is ________.

A:

1

B:

4

C:

8

D:

16

Answer: C

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An ADC that uses an up/down counter (and other devices) to follow changes in the input analog signal is a ________.

A:

single-slope ramp converter

B:

dual-slope ramp converter

C:

successive-approximation converter

D:

tracking converter

Answer: D

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The principal advantage of the three-wire handshake on the GPIB is that it ________.

A:

is faster than two-wire methods

B:

allows fast and slow listeners on the same bus

C:

can be used over very long distances

D:

is compatible with the RS232C standard

Answer: B

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Questions for: Digital Signal Processing