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Product ViewDescription: 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 digital form. The MAX31865's inputs are protected against overvoltage faults as large as Q50V. Programmable detection of RTD and cable open and short conditions is included. Parameter: 1>.Work Voltage:DC 3.3V 2>.Protocol:SPI 3>.Work Temperature:-40℃~125℃ 4>.Work Humidity:0%~95%RH 5>.Size:27*22*2.4mm Features: 1>.Simple Conversion of Platinum RTD Resistance to Digital Value 2>.Handles 100ohm to 1kohm (at 0℃) Platinum RTDs(PT100 to PT1000) 3>.Compatible with 2-, 3-, and 4-wire Sensor Connections 4>.Conversion Time: 21ms max 5>.15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125NC (Varies Due to RTD Nonlinearity) 6>.Total Accuracy Over All Operating Conditions:0.5NC (0.05% of Full Scale) max 7>.+/-50V Input Protection 8>.Fully Differential VREF Inputs 9>.Fault Detection (Open RTD Element, RTD Shorted to Out-of-Range Voltage, or Short Across RTD Element) 10>.SPI-Compatible Interface Package: 1pcs MAX31865 PT100/PT1000 RTD Temperature Thermocouple Sensor Amplifier Module 1pcs 8Pin 2.54mm Female Pin