The MAX3180EEUK-T is a sensitive device and requires a careful PCB layout to ensure accurate temperature measurements. It is recommended to keep the device away from high-current carrying traces, use a solid ground plane, and keep the thermocouple connections as short as possible. Additionally, it is recommended to use a 4-layer PCB with a dedicated thermal plane to minimize thermal gradients.
The MAX3180EEUK-T has an internal CJC sensor, but it is recommended to use an external CJC sensor for higher accuracy. The external CJC sensor should be placed close to the thermocouple connection and connected to the CJC pin on the MAX3180EEUK-T. The device will then use the external CJC sensor to compensate for the cold-junction temperature.
The MAX3180EEUK-T is compatible with K-type thermocouples, which are the most common type used in industrial applications. The recommended thermocouple size is 24 AWG or larger, with a minimum length of 10 inches (25 cm) to ensure accurate temperature measurements.
The MAX3180EEUK-T does not require calibration, as it is a digital device with internal calibration. However, it is recommended to perform a system-level calibration to ensure that the entire temperature measurement system is accurate. This can be done by comparing the output of the MAX3180EEUK-T with a known temperature reference source.
The maximum cable length for the thermocouple connection to the MAX3180EEUK-T depends on the type of thermocouple and the noise environment. As a general rule, it is recommended to keep the thermocouple cable length as short as possible (less than 10 feet or 3 meters) to minimize noise pickup and ensure accurate temperature measurements.
MAX3180EEUK-T datasheet
by Maxim Integrated Products
