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Forum Post: RE: ADS1231: Zero drift calculation

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Hello Nikhil, I assume you are looking for temperature drift data for the ADS1231. This can be found in the datasheet under Input offset drift and Gain drift. As an example, assuming you calibrate at 25C and then the system temperature is increased to 60C, this will be a 35C increase. The change in offset voltage sill be 35C*20nV/C=0.7uV and the gain error change will be 35C*2ppm/C=70ppm, or 0.007%. Application note 'A Basic Guide to Bridge Measurements' discusses these different error sources and how they effect system measurement accuracy. https://www.ti.com/lit/an/sbaa532a/sbaa532a.pdf Regards, Keith Nicholas Precision ADC Applications

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