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Interfacing to the Analog World

Q1:

What is the main disadvantage of the stairstep-ramp A/D converter?

A The counter must count up from zero at the beginning of each conversion sequence, and the conversion time will vary depending on the input voltage.

B It requires a counter.

C It requires a precision clock in order for the conversion to be reliable.

D All of the above

ANS:A - The counter must count up from zero at the beginning of each conversion sequence, and the conversion time will vary depending on the input voltage.

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