MAX31865 PT100 PT1000 RTD Temperature Thermocouple Sensor Amplifier Board Platinum RTD Resistance to Digital Value for Arduino

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 ±45V. Programmable detection of RTD and cable open and short conditions is included. Features: Integration Lowers System Cost, Simplifies Design Efforts, and Reduces Design Cycle Time 1. Simple Conversion of Platinum RTD Resistance to Digital Value 2. Handles 100? to 1k? (at 0°C) Platinum RTDs (PT100 to PT1000) 3. Compatible with 2-, 3-, and 4-Wire Sensor Connections 4. SPI-Compatible Interface 5. 20-Pin TQFN and SSOP Packages High Accuracy Facilitates Meeting Error Budgets 1. 15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125°C (Varies Due to RTD Nonlinearity) 2. Total Accuracy Over All Operating Conditions: 0.5°C (0.05% of Full Scale) max 3. Fully Differential VREF Inputs 4. 21ms (max) Conversion Time Integrated Fault Detection Increases System Reliability 1. ±45V Input Protection 2. Fault Detection (Open RTD Element, RTD Shorted to Out-of-Range Voltage, or Short Across RTD Element) Applications: Industrial Equipment Instrumentation Medical Equipment Package Included: 1 x MAX31865 PT100 PT1000 RTD Temperature Sensor Amplifier Board