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. Applications * Industrial Equipment * Instrumentation * Medical Equipment * Integration Lowers System Cost, Simplifies Design Efforts, and Reduces Design Cycle Time * Simple Conversion of Platinum RTD Resistance to Digital Value * Handles 100Ω to 1kΩ (at 0°C) Platinum RTDs (PT100 to PT1000) * Compatible with 2-, 3-, and 4-Wire Sensor Connections * SPI-Compatible Interface * 20-Pin TQFN and SSOP Packages * High Accuracy Facilitates Meeting Error Budgets * 15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125°C (Varies Due to RTD Nonlinearity) * Total Accuracy Over All Operating Conditions: 0.5°C (0.05% of Full Scale) max * Fully Differential VREF Inputs * 21ms (max) Conversion Time * Integrated Fault Detection Increases System Reliability * ±45V Input Protection * Fault Detection (Open RTD Element, RTD Shorted to Out-of-Range Voltage, or Short Across RTD Element) https://elecena.pl/product/22323239/rtd-to-digital-converter 2022-12-27 https://elecena.pl/product/22323239/rtd-to-digital-converter 2025-01-17