Analog Devices / Maxim Integrated MAX31855 Thermocouple-to-Digital Converters

Analog Devices MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converters perform cold-junction compensation and digitize 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. Analog Devices MAX31855 converters resolve temperatures to 0.25°C, allow readings as high as +1800°C and as low as -270°C, and exhibit thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples. Analog Devices MAX31855 Thermocouple-to-Digital Converters are ideal for various automotive, HVAC, and industrial applications.

Features

  • Cold-junction compensation
  • 14-Bit, 0.25°C resolution
  • Versions available for K-, J-, N-, T-, S-, R-, and E-Type thermocouples
  • Simple SPI-compatible interface (read-only)
  • Detects thermocouple shorts to GND or VCC
  • Detects open thermocouple

Applications

  • Industrial
  • Appliances
  • HVAC
  • Automotive

Application Circuit

Application Circuit Diagram - Analog Devices / Maxim Integrated MAX31855 Thermocouple-to-Digital Converters
Publicado: 2011-11-30 | Actualizado: 2025-10-29