A 4-layer PCB with a solid ground plane and thermal vias connecting the thermal pad to the ground plane is recommended for optimal thermal performance.
Use a low-pass filter or a shielded cable to connect the sensor to the microcontroller, and consider using a noise-reducing capacitor on the VCC pin.
The maximum cable length for the I2C interface is approximately 10 meters, but this can be extended using I2C bus extenders or repeaters.
Yes, the LM95214CISD/NOPB is rated for operation up to 125°C, but ensure that the PCB and surrounding components can also withstand the high temperature.
Use a precision temperature reference and a calibration routine to adjust the sensor's offset and gain to achieve high accuracy.