106RSS035M

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1. Description

The MAX31855 performs cold-junction compensation and digitizes the signal from a K-, J-, N-, T-, S-, R-, or E-type thermocouple. The data is output in a signed 14-bit, SPI-compatible, read-only format. This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C, and exhibits thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples. For full range accuracies and other thermocouple types, see the Thermal Characteristics specifications.

2. Features

    1. Integration Reduces Design Time and Lowers System Cost

        - 14-Bit, 0.25°C Resolution Converter

        - Integrated Cold-Junction Compensation

        - Versions Available for Most Common Thermocouple Types: K-, J-, N-, T-, S-, R-, and E-Type

        - Detects Thermocouple Shorts to GND or VCC

        - Detects Open Thermocouple

    2. Interfaces to Most Microcontrollers

        - Simple SPI-Compatible Interface (Read-Only)

3. Applications 

    1. Industrial

    2. Appliances

    3. HVAC

4. Pin Configuration

5. Pin Description