MAX31855 K-type thermocouple module

  1. Power Supply: 3.3 to 5v
  2. Interface: 3 wire SPI
  3. Accuracy: 0.25 degree temperature
  4. Compatible Thermocouple: K type
  5. Measurement Temperature Range: -200 °C to 1350 °C
  6. Resolution: 14 bit

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Datasheet

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Schematic

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Operating Voltage (VDC):

3.3 ~ 5

Accuracy

0.25 degree temperature

Interface

SPI

Temp. Measuring Range (°C)

-200 to 1350

Resolution

14 bit

Length (mm):

20

Width (mm):

20

Height (mm):

3.2

Weight (g):

1.33

Shipping Weight 0.002 kg
Shipping Dimensions 2 × 2 × 1 cm

Thermocouples are very sensitive, requiring a good amplifier with a cold-compensation reference. The MAX31855K does everything for you and can be easily interfaced with any microcontroller, even one without an analog input. This breakout board has the chip itself, a 3.3V regulator with 10uF bypass capacitors, and level shifting circuitry, all assembled and tested. Comes with a 2 pin terminal block (for connecting to the thermocouple) and pin header (to plug into any breadboard or perfboard).


Features:

  1. Works with any K type thermocouple
  2. Will not work with any other kind of thermocouple other than K type
  3. -200°C to +1350°C output in 0.25-degree increments â€“ note that K thermocouples have about ±2°C to ±6°C accuracy
  4. Internal temperature reading
  5. 3.3 to 5v power supply and logic level compliance!
  6. SPI data output requires any 3 digital I/O pins.

Package Includes:

1 x MAX31855 K-type thermocouple module

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