Many thanks for the quick response. [quote userid="204916" url="~/support/data-converters-group/data-converters/f/data-converters-forum/1479222/ads124s08-idacs-protection/5678339#5678339"] If you are going to use the internal VREF, even just for the IDACs, you need at least a 1uF cap on this pin to AVSS[/quote] This solved my issue. All the boards are working, I just had to solder the cap there.
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