MAX31855 SPI Thermocouple Amplifier Breakout Board


If you need to measure the temperature of a thermocouple, this is the board for you! The MAX31855 connects directly to a K-type thermocouple for temperature measurement, and is the successor to Maxim's MAX6675 IC. It has a simple, read-only SPI interface for getting the temperature of both the chip's internal temperature and the thermocouple temperature.

Note: This device can ONLY be run in 3.3V systems! Neither the supply voltage nor the I/O pins support 5V!

  • Thermocouple temperature measurement has 14-bit accuracy (1 sign bit, 11 whole-number bits, and 2 fractional bits), and can read from -270C to +1800C
  • Junction temperature has 12-bit accuracy (1 sign bit, 7 whole-number bits, and 4 fractional bits)
  • Chip monitors if the thermocouple is shorted to VCC or GND and if the thermocouple is not connected
  • Ships with a 10 nF disc capacitor that can be connected in parallel with the thermocouple in case the thermocouple temperature doesn't match the junction temperature at ambient conditions

  • Documentation/Software:
  • Datasheet
  • Schematic
  • Example code for nRF24LE1

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    • Shipping Weight: 0.1lbs
    • 10 Units in Stock

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    This product was added to our catalog on Friday 04 November, 2011.

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