Shobith, How large is your non-linearity? Are you making many measurements across the full range of operation or are you making only a few? Does this non-linearity appear across the range or does it appear after the input reaches a certain level. Can you share a schematic and your test procedure? Problems with non-linearity can come from a variety of different sources, and can be large and small, so I'll need as much detail as you can provide to help. For the test data that you have already taken, it would be best to report the data from the ADC in codes, not converted to any voltage or other units. Also, it would best to explain how you are making the measurements, using what source as the input. Regardless, we can help. Just be detailed in your measurement procedure and schematics and we can determine the source of the non-linearity. Joseph Wu
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