MAX31855
Cold-Junction Compensated Thermocouple-to-Digital Converter
Accurate Thermocouple-to-Digital Converter IC Simplifies Designs and Lowers System Cost
Download Data Sheet
Subscribe
Maxim ConfidentialPlease check latest availability status for a specific part variant.
MyMaxim SubscriptionsDescription
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 in the full data sheet.
FAQs: MAX31855
Key Features
- 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
- Interfaces to Most Microcontrollers
- Simple SPI-Compatible Interface (Read-Only)
Applications/Uses
- Appliances
- Automotive
- HVAC
- Industrial
Status:
Package:
Temperature:
