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AD5421 grades


In (AD5421) TUE = Gain + Offset + output drift over temperature + INL

We can remove gain and offset error as per datasheet.

So after doing this TUE = output drift over temperature (5ppm FSR /°C ) +INL (0.024% FSR) for A grade (AD5421ACPZ)) and internal Rset resistor

Please confirm whether my understanding is correct.

If yes that means; whether I have to go with C grade ( AD5421CREZ) wherein INL is very less (0.0035% FSR). Please confirm.

Please clarify with confusion regarding grades.


Nidhi P Shetty