MAX31865 RTD Platinum Resistance Temperature Detector PT100 to PT1000

The MAX31865 is an easy-to-use thermistor-to-digital output converter optimized for platinum resistance temperature detectors (RTDs). The external resistor sets the RTD sensitivity, and the high precision Δ- Σ ADC converts the ratio of the RTD resistor to the reference resistor into a digital output. The MAX31865 has overvoltage protection up to ±45V and provides configurable RTD and cable open and short-circuit condition detection.