7Semi MAX31865 RTD Temperature Sensor Amplifier Breakout Board - SPI Interface
The 7Semi MAX31865 breakout board is a precision RTD-to-digital converter designed for interfacing PT100 to PT1000 platinum temperature sensors with microcontrollers like Arduino, Raspberry Pi, and STM32 via SPI. It provides high-accuracy temperature measurement with built-in fault detection and robust input protection.
Features
- High-precision 15-bit delta-sigma ADC for accurate RTD resistance measurement.
- Supports 2-wire, 3-wire, and 4-wire PT100, PT500, and PT1000 sensor configurations.
- SPI-compatible digital interface for easy microcontroller integration.
- Integrated ±45V input protection and fault detection for robust operation.
- Fast 21ms maximum conversion time for responsive temperature monitoring.
Out of stock
This breakout board integrates the MAX31865 platinum RTD-to-digital converter, a dedicated IC for high-accuracy temperature sensing. It employs a 15-bit delta-sigma ADC to precisely measure the resistance of connected RTD (Resistance Temperature Detector) sensors, converting it into a digital temperature value with a nominal resolution of 0.03125°C. The board is engineered for stability in industrial and instrumentation environments.
It features comprehensive input protection up to ±45V, safeguarding the sensitive electronics from voltage transients. The built-in fault detection system monitors for RTD open-circuit, short-circuit, and over/under-voltage conditions, providing diagnostic data via the SPI interface. The compact breakout format includes pre-mounted headers, simplifying prototyping and integration into data acquisition systems, HVAC controls, and process monitoring equipment.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 3 × 2.5 × 1 cm |
