Among the following four, the slowest ADC (analog-to-digital converter

1.	Among the following four, the slowest ADC (analog-to-digital converter) is
A.	parallel-comparator (flash) type
B.	Successive approximation type
C.	Integrating type
D.	Counting type
Answer» D. Counting type

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Among the following four, the slowest ADC (analog-to-digital converter) is

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