MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converter IC

MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converter IC

The MAX31855 is a sophisticated thermocouple-to-digital converter that integrates cold-junction compensation, signal conditioning, and a 14-bit analog-to-digital converter (ADC) to provide temperature data directly from a thermocouple. The device supports Type K thermocouples (as well as J, N, T, E, R, S, and other types through different variants). The IC outputs the measured temperature data via a Serial Peripheral Interface (SPI), allowing easy interfacing with microcontrollers or other digital devices.

DNA solutions, Nashik has various types of IC's. Check out our complete collection of IC's.

• Wide Thermocouple Compatibility: Supports Type K thermocouples directly and other types (J, N, T, etc.) with specific variants.
  

• Cold-Junction Compensation: Built-in cold-junction compensation ensures accurate temperature readings by adjusting for ambient temperature changes at the thermocouple’s connection point.
  

• High Accuracy: Accuracy within ±2°C for readings from −200°C to +700°C with a Type K thermocouple.
  

• Digital SPI Interface: Provides easy integration with microcontrollers or other SPI-enabled devices.
  

• Wide Temperature Range: Can measure thermocouple temperatures from −200°C to +1350°C, depending on the thermocouple type.
  

• 14-Bit ADC Resolution: Provides precise temperature readings with a resolution of 0.25°C.
  

Specifications of MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converter IC

• Input Types: Supports Type K thermocouple (other thermocouple variants available for different models).

• Temperature Measurement Range: Thermocouple Range (Type K): −200°C to +1350°C.

• Communication Interface: SPI Interface, with a data transfer rate of up to 5MHz.

• Dimensions: SOIC-8 package dimensions: 4.9mm x 3.9mm (approx).

Package Includes

• 1 x MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converter IC