A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a ferrite bead or a 10uF capacitor to filter the power supply.
Use a thermocouple or an RTD sensor with a high-accuracy amplifier, and calibrate the system before use. Ensure the sensor is properly connected and the device is in a thermally stable environment.
The maximum cable length for the I2C interface is approximately 10 meters (33 feet), but it depends on the specific application, cable quality, and noise environment.
Use a shielded enclosure, keep the device away from high-frequency sources, and use a common-mode choke or a ferrite bead on the I2C lines. Ensure good PCB layout practices, such as keeping analog and digital sections separate.
The POR timing is approximately 10ms. Ensure that your system design can tolerate this delay, and consider adding a reset signal to your microcontroller or other devices that require a reset signal.
DS4432U+T&R datasheet
by Maxim Integrated Products
