MAX31851SATB+T

Sensor And Detector Interfaces Overview

The MAX31851SATB+T is a cold-junction compensated, 1-Wire thermocouple-to-digital converter designed for S-type and R-type thermocouples. It integrates a 14-bit ADC with 0.25°C resolution, enabling temperature readings from -270°C to +1768°C. The device features integrated cold-junction compensation, fault detection for open circuits or shorts, and parasite-power capability via the DQ pin. It utilizes a unique 64-bit ROM code for addressing on a single bus and includes four location address inputs (AD0-AD3) for system mapping.

Sensor And Detector Interfaces Feature Summary

• Supports S-type and R-type thermocouples with integrated cold-junction compensation
• Read-only 1-Wire interface allowing parasite power operation
• Detects thermocouple faults including open circuits and shorts to VDD or GND

Sensor And Detector Interfaces Applications

• Industrial process monitoring
• HVAC systems
• Medical equipment
• Appliances

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix SATB+T against official manufacturer documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the selected variant matches the required S-type or R-type thermocouple application before procurement.

Sensor And Detector Interfaces Selection Notes

Select this component when an S-type or R-type thermocouple interface is required. The MAX31851 is distinct from the MAX31850, which supports K, J, N, T, and E types. Verify that the 1-Wire protocol and parasite power requirements align with the host microcontroller capabilities.

Sensor And Detector Interfaces Part Context

This part belongs to the MAX31850/MAX31851 family of cold-junction compensated thermocouple-to-digital converters. While the MAX31850 handles common base metal thermocouples, the MAX31851 is specifically optimized for high-temperature noble metal S-type and R-type sensors.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.