MAX31850NATB+T

Sensor And Detector Interfaces Overview

The MAX31850NATB+T is a cold-junction compensated, 1-Wire thermocouple-to-digital converter. It digitizes signals from K-, J-, N-, T-, S-, R-, or E-type thermocouples with a resolution of 0.25°C and an accuracy of ±2°C for temperatures ranging from -200°C to +700°C. The device supports readings up to +1768°C and down to -270°C. Operating power can be obtained directly from the data line in parasite-powered mode, eliminating the need for an external supply. Each unit features a unique 64-bit serial code for multi-drop capability on a single bus.

Sensor And Detector Interfaces Feature Summary

• Integrated cold-junction compensation circuitry
• Read-only 1-Wire interface supporting parasite power
• Built-in fault detection for open circuits and shorts

Sensor And Detector Interfaces Applications

• Industrial temperature monitoring systems
• HVAC equipment
• Medical devices

Sensor And Detector Interfaces Procurement Notes

Verify the specific thermocouple type suffix (e.g., K, J, N) required for your application, as the base model number does not specify the supported sensor type. Confirm that the ordering suffix matches the exact package and tape-and-reel configuration needed for your manufacturing process. Ensure compatibility with the host microcontroller's 1-Wire protocol implementation.

Sensor And Detector Interfaces Selection Notes

Select this component when a read-only interface and minimal wiring are required for distributed temperature sensing. The integrated cold-junction compensation simplifies design by removing the need for a separate reference sensor. Consider the 1-Wire protocol constraints and the potential need for a strong pullup during conversions if using parasite power.

Sensor And Detector Interfaces Part Context

This part belongs to the MAX31850/MAX31851 family of thermocouple-to-digital converters. The MAX31850 variant supports K, J, N, T, and E types, while the MAX31851 supports S and R types. Both share the same core architecture, including the 1-Wire interface and cold-junction compensation capabilities.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers: MAX31851NATB+T.