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MAX31855 Key Features

  • Integration Reduces Design Time and Lowers System Cost
  • 14-Bit, 0.25°C Resolution Converter
  • Integrated Cold-Junction pensation
  • Versions Available for Most mon Thermocouple Types: K-, J-, N-, T-, S-, R-, and E-Type
  • Detects Thermocouple Shorts to GND or VCC
  • Detects Open Thermocouple
  • Interfaces to Most Microcontrollers
  • Simple SPI-patible Interface (Read-Only)

Related Maxim Integrated Datasheets

Part Number Description
MAX31850 1-Wire Thermocouple-to-Digital Converters
MAX31851 1-Wire Thermocouple-to-Digital Converters
MAX31826 1-Wire Digital Temperature Sensor
MAX3107 SPI/I2C UART
MAX3108 SPI/I2C UART

MAX31855 Description

The MAX31855 performs cold-junction pensation 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-patible, 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.