MAX31850KATB+T

Sensor And Detector Interfaces Overview

The MAX31850KATB+T is a cold-junction compensated, 1-Wire thermocouple-to-digital converter optimized for K-type thermocouples. It digitizes signals from K-, J-, N-, T-, S-, R-, or E-type thermocouples with a resolution of 0.25°C and supports readings from -270°C to +1768°C. The device operates on a supply voltage range of 3.0V to 3.7V and functions within an operating temperature range of -40°C to +125°C. Communication occurs via a read-only 1-Wire interface requiring only one data line, and the unit can be powered directly from this line in parasite-power mode.

Sensor And Detector Interfaces Feature Summary

• Integrated cold-junction compensation eliminates external sensing components
• Read-only 1-Wire interface enables single-wire communication and parasite power operation
• Built-in fault detection identifies open circuits and shorts to ground or supply
• Unique 64-bit serial code allows multiple devices to operate on a shared bus

Sensor And Detector Interfaces Applications

• Industrial process control systems
• HVAC equipment monitoring
• Medical diagnostic instruments
• Appliance temperature regulation

Sensor And Detector Interfaces Procurement Notes

Verify that the specific suffix 'K' corresponds to the required K-type thermocouple compatibility. Confirm the 'ATB' package designation matches the TDFN-EP form factor requirements. Ensure the '+T' reel packaging aligns with automated assembly specifications. Cross-reference the manufacturer part number against current Analog Devices documentation to validate revision status.

Sensor And Detector Interfaces Selection Notes

Select this component when a single-wire interface is necessary to minimize wiring complexity in distributed sensor networks. Choose this variant specifically for K-type thermocouple applications due to its internal calibration. Consider parasite power capabilities if external voltage rails are unavailable at the sensor location. Evaluate thermal resistance characteristics if high ambient temperatures are expected near the mounting point.

Sensor And Detector Interfaces Part Context

This device belongs to the MAX31850/MAX31851 family of cold-junction compensated converters. The MAX31850 series supports K, J, N, T, and E types, while the MAX31851 handles S and R types. Both utilize the same architecture but differ in internal gain settings and calibration tables tailored to specific thermocouple sensitivities.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers: MAX31850JATB+T, MAX31850NATB+T, MAX31850TATB+T, MAX31850EATB+T.