MAX31865 PT100 RTD Temperature Sensor Amplifier Module
Package SSOP
MAX31865 overview
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
Key specifications
(0.05% of Full Scale) max
0.5NC
Input Protection
±50V
Fully Differential
VREF Inputs
Conversion Time
21ms (max)
Datasheet
max31865.pdf
MAX31865 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
MAX31865 pinout
MAX31865 applications
- 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.
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