The TMP6x thermistors are unique in that these thermistors have a fairly consistent error across temperature as compared to traditional negative temperature coefficient (NTC) thermistors. Therefore, in this document, the TMP61 tolerance error is calibrated across temperature by simply subtracting the error at one single temperature point.

After calibrating the ADC error with fix resistor, and the TMP61 tolerance error by performing the single-point offset correction at 0°C, the measured temperature errors are showed in Figure 5-3. The error is less than ±1°C in the range of -20°C to 125°C.