Datasheet

We've carried various MAXIM thermocouple amplifiers and they're great - but thermocouples don't have the best

accuracy or precision, for when the readings must be as good as can be. The MAX31865 handles all of your RTD

needs, and can even compensate 3 or 4 wire RTDs for better accuracy. Connect to it with any microcontroller over SPI

and read out the resistance ratio from the internal ADC. We put a 0.1% resistor as a reference resistor on the breakout.

We have some example code that will calcuate the temperature based on the resistance for you.

The PT100 version of the breakout uses 430Ω

The PT1000 version uses 4300Ω

We even made the breakout 5V compliant, with a 3.3V regulator and level shifting, so you can use it with any Arduino

or microcontroller

Each order comes with one assembled RTD amplifier breakout board. Also comes with two 2-pin terminal blocks (for

connecting to the RTD sensor) and pin header (to plug into any breadboard or perfboard). A required PT100 or

PT1000 RTD is not included! (But we stock them in the shop). Some soldering is required to solder the headers and

terminal blocks to the breakout, but it's an easy task with soldering tools.