Digital Electronics - Digital Signal Processing - Discussion


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: Option B


No answer description available for this question.

Dr.S.S.Limaye said: (Oct 1, 2011)  
An N bit flash ADC has 2^n comparators. When an unknown input Vin is applied to its input, all comparators whose reference voltage is less than Vin will give output 1 while others will give output 0. THe highest reference valued comparator is nearest to Vin. Thus a priority encoder will convert it to binary.

Gyandeep Shukla said: (Aug 27, 2016)  
Yes, It have 2^n comparator.

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