Question
Download Solution PDFHow many comparators are used in a 4-bit flash Analog-to-Digital Converter (ADC)?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 3):(15)
Concept:
Flash Type ADC:
1) It is the fastest ADC among all the ADC types.
2) An n-bit flash type ADC requires: 2n -1 comparators, 2n resistors, and one 2n × n priority encoder.
Analysis: Number of bits(n) = 4
Number of comparators required = 24 -1 = 15
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