Other Parts Discussed in Thread: REF5040
My customer designed his product using ADS131A02.
However, when he tried EMC test such as ESD/EFT, output data was abnormal.
He checked each pins at this condition and he noticed that internal reference was unstable around 1V~3V whereas nominal value is 4V.
He assumes abnormal output value was caused by unstable condition of the internal reference.
- Is there any possibility that internal reference become unstable at ESD/EFT test?
Do you have any idea what causes this phenomena?
- Could you please review customer's schematic from this TI internal link?