Analog to Digital and Digital to Analog Converters – Exercise – 1

21. The resolution of a 0–5 V 6-bit digital-to-analog converter (DAC) is:

(a) 63%
(b) 64%
(c) 1.56%
(d) 15.6%

Answer
Answer : (c)
Explanation
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22. In a flash analog-to-digital converter, the output of each comparator is connected to an input of a:

(a) decoder
(b) priority encoder
(c) multiplexer
(d) demultiplexer

Answer
Answer : (b)
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23. Which is not an analog-to-digital (ADC) conversion error?

(a) differential nonlinearity
(b) missing code
(c) incorrect code
(d) offset

Answer
Answer : (a)
Explanation
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24. A binary-weighted resistor used in a digital-to-analog converter (DAC) is only practical up to a resolution of ________.

(a) 10 bits
(b) 2 bits
(c) 8 bits
(d) 4 bits

Answer
Answer : (d)
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25. The characteristic that a change of one binary step on the input of a digital-to-analog converter (DAC) should cause exactly one step change on the output is called ________.

(a) resolution
(b) monotonicity
(c) linearity
(d) accuracy

Answer
Answer : (b)
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