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.
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)