Breakout board for the MAX31855K digital thermocouple interface ICs by Maxim. Measured temperature range is -270C-1372C with known thermal characteristics and output resolution of 0.25C. This sensor supports a larger operating range (specifically in the negative range) than its predecessors, the MAX6674 and MAX6675, though it is not pin-pin compatible. This board is interfaced with a 0.1" 2x5 pin header (8-pins used), has four vertical mini thermocouple connectors and four mounting holes for standoffs and 4-40 screws.

The SEN-30003 is interfaced via 3 or 4-wire SPI with a data-ready output for specific operating modes. An LDO and a high-speed level shifter are included to allow interfacing with microcontroller devices between 3.0V and 5V (all Arduinos, Raspberry PI, etc) without sacrificing device performance (many other level shifters reduce data rates to below 500 kHz).

Note: we also offer a version of this board tailored to Arduino Uno platform, the SEN-30004-K03.

Features

• Measures -270C-1372C (extended range)
• 14-bit SPI interface
• Supply voltage range: 3.3V - 5.0V
• Detects shorts to GND or Vcc
• Detects open thermocouple
• Other versions available (K, J, and T stocked). Contact Customer Service to place a custom order.
• Mounting holes for 4-40 sized screws
• Connections are spaced for 0.1" pin header
• Designed, manufactured, tested and shipped from the USA