The MAX31865 is an easy-to-use thermistor to digital output converter optimized for platinum resistance temperature detectors (RTD). The external resistor sets the RTD sensitivity, and the high-precision Δ- ΣADC converts the RTD resistor and the reference resistor to digital output. The MAX31865 input has overvoltage protection of up to ± 45V, providing configurable RTD and cable open, short circuit condition detection
Features
- Total Accuracy Over All Operating Conditions:
- Fault Detection (Open RTD Element, RTD Shorted to
- Out-of-Range Voltage, or Short Across RTD Element)
- SPI-compatible Interface
- 20-Pin TQFN Package
Pinout
Specifications
| (0.05% of Full Scale) max | 0.5NC |
| Input Protection | ±50V |
| Fully Differential | VREF Inputs |
| Conversion Time | 21ms (max) |
Application
- Temperature measurement: The MAX31865 PT100 RTD Temperature Sensor Amplifier Module is used for accurate temperature measurement in various applications.
- Industrial process control: The module finds applications in industrial process control systems. It enables precise temperature measurement using PT100 resistance temperature detectors (RTDs), allowing for accurate control and regulation of processes.
- Heating, ventilation, and air conditioning (HVAC): The module can be employed in HVAC systems for temperature sensing. It enables monitoring of temperatures in HVAC equipment, ducts, or rooms, facilitating efficient heating and cooling control.
Datasheet
Download Datasheet for MAX31865 PT100 RTD Temperature Sensor Amplifier Module from the link given below.
