Analog and Digital Converters - Technical MCQs
Q1: The primary disadvantage of the flash analog-to digital converter (ADC) is that:A
it requires the input voltage to be applied to the inputs simultaneously
B
a long conversion time is required
C
a large number of output lines is required to simultaneously decode the input voltage
D
a large number of comparators is required to represent a reasonable sized binary number
ANS:D - a large number of comparators is required to represent a reasonable sized binary number The number of a comparator used in flash type ADC is 2^n-1. |
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