Hi, folks:

I want to survey experienced guys on flash ADC back-end encoders.

Let us assume the flash ADC is for data communication. What is the standard, or most commonly used, back end digital encoder, are used to solve bubble issue and metastability.

I've seen "NAND3" + "Gray ROM" + "Completion detection" combined as total solution. Just want experience designers to comment its performance and other popular ways in nowadays.

Regards,
Neoflash