ADS1118: Maximum measurement error for single-ended input from 1.5V to 4.5V

Hi Jessica,

Generally ADC error calculations include initial offset error, gain error, reference accuracy, INL, DNL (if applicable) and noise. If you want to know the error across temperature, then you would also include offset drift, gain drift, and reference drift.

The maximum possible error would be to just add the max values for all of these parameters together, however this is a statistically unlikely scenario. Another way is to take the typical values and perform a root-sum-of-squares calculation to find an "average typical error". You can also extrapolate from this value what the "average max error" could be by using statistical analysis

Please reference our Precision Labs content for more information. Specifically sections 1 and 4 at the following link: https://training.ti.com/ti-precision-labs-adcs

-Bryan