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ADAU1787 Differential ADC

SigmaDSP & SigmaStudio Natan Aug 8, 2022 00:00 1 replies Original on forum ↗
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Natan Question
Aug 8, 2022 00:00

What does ADC_CTRL5 bit 4 do exactly? It is labeled as DIFF_INPUT and states "Configures the ADCs for differential operation.". I don't see any other mention in the datasheet of how this works only single ended mode is specified. Does this allow you to use 2 inputs differentially instead of in single ended mode? If so can It be combined with the PGAs?

galvinpjg Reply
Aug 11, 2022 00:00

Natan,

This is an error in the datasheet and should read "RESERVED." The datasheet is being updated to reflect this. So this is not a valid setting for the ADAU1787.