Texas Instruments recommends a 4-layer PCB with a solid ground plane and a thermal relief pattern around the device to minimize thermal resistance and ensure accurate temperature readings.
When the TMP300's output is not connected to an ADC, it's recommended to connect a 10kΩ pull-down resistor to ground to prevent the output from floating and to ensure a valid logic low level.
The maximum cable length for the TMP300's output signal depends on the specific application and noise environment. As a general guideline, Texas Instruments recommends keeping the cable length as short as possible (less than 10 inches) to minimize noise and signal degradation.
The TMP300 does not require calibration for typical temperature measurement applications. However, for high-accuracy applications, Texas Instruments recommends performing a 1-point or 2-point calibration to compensate for any offset or gain errors.
The TMP300's response time to changes in temperature is typically around 10-15 seconds, depending on the thermal mass of the device and the surrounding environment.
TMP300AIDBVR datasheet
by Texas Instruments
