MAX31865 PT100/PT1000 RTD Temperature Detector Module
The MAX31865 RTD Temperature Detector Module provides a high-precision SPI interface for connecting PT100 or PT1000 platinum resistance temperature detectors (RTDs) to microcontrollers like Arduino, Raspberry Pi, ESP32, and STM32, simplifying industrial-grade temperature measurement.
Features
- High-precision 15-bit ADC converter optimized for platinum RTDs (PT100 to PT1000).
- SPI-compatible digital interface for easy integration with Arduino, Raspberry Pi, and other MCUs.
- Supports 2-, 3-, and 4-wire RTD sensor connections for flexible system design.
- Integrated fault detection for open/short RTD conditions and ±45V overvoltage protection.
- Delivers high accuracy (±0.5°C max) and 0.03125°C nominal resolution for stable measurements.
Out of stock
The MAX31865 is a dedicated signal conditioner and analog-to-digital converter designed specifically for platinum Resistance Temperature Detectors (RTDs). It utilizes a high-precision delta-sigma ADC to accurately measure the ratio between the RTD’s resistance and an external reference resistor, converting it into a digital value accessible via SPI. This eliminates the need for complex analog front-end circuitry, reducing system cost and design complexity.
Engineered for reliability in industrial environments, the module features robust ±45V input protection and comprehensive fault detection for RTD open circuits, short circuits, and out-of-range voltage conditions. Its support for 2-, 3-, and 4-wire connections allows for compensation of lead resistance errors, ensuring measurement accuracy is maintained over long cable runs typical in process control and monitoring applications.
Additional Information
| Weight | 0.04 kg |
|---|---|
| Dimensions | 6 × 3 × 1 cm |
