MAX31865 Datasheet (Maxim Integrated) - RTD-to-Digital Converter

MAX31865, RTD-to-Digital Converter

The MAX31865 is an easy-to-use resistance-to-digital converter optimized for platinum resistance temperature detectors (RTDs).

An external resistor sets the sensitivity for the RTD being used and a precision delta-sigma ADC converts the ratio of the RTD resistance to the reference resistance into di

MAX31865 Features

* S Simple Conversion of Platinum RTD Resistance to Digital Value S Handles 100Ω to 1kΩ (at 0°C) Platinum RTDs (PT100 to PT1000) S Compatible with 2-, 3-, and 4-wire Sensor Connections S Conversion Time: 21ms max S 15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125NC (Varies Due to RTD