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TMP119: About Accuracy

Part Number: TMP119

Tool/software:

The data sheet describes the accuracy as follows.

  – ±0.03°C (typical) from 0°C to 45°C

  – ±0.08°C (maximum) from 0°C to 45°C

Is it correct to understand that this refers to a variation of ±0.08°C (maximum) between 0 and 45°C, which is an error between the actual temperature and the measured temperature, and not an offset error?

The required specification of the device is to measure with an accuracy of ±0.05°C at a constant temperature of 30°C. Is it possible that the accuracy of this sensor is not sufficient to meet this requirement?

  • Yes, accuracy reflects error between the actual temperature and the measured temperature.

    Most TMP119 sensors shipped are expected to meet your requirement (typical.) Not all TMP119 sensors shipped are guaranteed to meet your requirement (max.) 

    The datasheet has further information on error distribution, such as Figure 6-5.

    thanks,

    ren