MAX31855 Thermocouple Temperature Measuring Module
The module can convert ambient temperature into a temperature compensation voltage using an internal temperature sensing diode.
Internally, it has a signal conditioning amplifier that converts the thermocouple signal to a voltage compatible with the ADC input channel
The T inputs are connected to a low-noise A1 amplifier to ensure high detection input accuracy while isolating the thermocouple connecting wire from the noise source.
It has a 14-bit thermocouple analog-to-digital converter, cold junction compensation detection and correction, digital controller, 1 SPI compliant interface and 1 associated control logic.
The measurement temperature range is -200°C~+1350°C, accuracy 0.25°C.
Works with any K-type thermocouple.
Comes with a 2 pin terminal block (for connecting a thermocouple) and pin header (to plug into any MCU).
Technical data:
Temperature measurement range: -200°C~+1350°C
Interface type: SPI interface, high-speed transmission
Operating voltage: 3-5VDC
Resolution: 14-bit resolution
Accuracy: 0.25℃