Infineon Technologies AS8579 Sensor Interface
Infineon Technologies AS8579 Sensor Interface detects capacity changes in different applications and measures the relative change in impedance, depending on the circuit. The sensor is used for human detection and many other applications. The Infineon Technologies AS8579 measures the current from a metal object and applies algorithms to determine its capacitive and resistive properties (impedance). This information can be read via an SPI interface that can also be used for IC configuration.
Features
- Accurate capacitive measurement (including resistive information)
- I/Q-signal demodulation
- Higher durability and lower system costs
- VAR&FIX_SEN function to avoid parasitic influences from cable and PCB
- Enabler for safety-critical applications
- Processed according to functional safety standard
- Suitable for automotive applications
- AEC-Q100 Grade 1 qualified
Applications
- Autonomous driving applications, e.g., hands-on-steering-wheel detection
- Detection of any human presence inside a vehicle, e.g., seat occupancy detection
- Detection of any human presence on the exterior of vehicles, e.g., automatic trunk opener (trunk opens automatically by detection of human foot near the sensor only)
Additional Resources
Videos
Block Diagram
Related Products
Mikroe MIKROE-5719 HOD CAP Click
Compact add-on board with the ams OSRAM AS8579 capacitive sensor.
Development Tools
Infineon Technologies AS8579 Adapter Board
Equipped with all necessary peripheral components for evaluation of the AS8579 Sensor Interface.
Infineon Technologies Capacitive Sensor Dev Tool for AS8579
Used to evaluate the AS8579 Sensor Interface.