Azoteq IQS620A ProxFusion® Sensor IC integrates multiple sensor technologies onto a single chip. The IQS620A offers dual direction Hall-effect sensing, along with capacitive touch sensing, and two level inductive sensing. The IQS620A is designed for applications where any or all of these technologies may be required. The IQS620A is an ultra-low power solution designed for short or long term activations through any of the sensing channels. The IQS620A sensor is fully I2C compatible and can be configured to output main trigger events on GPIOs.
Features
Unique combination of sensing technologies:
Capacitive sensing
Full auto-tuning with adjustable sensitivity2pF to 200pF external capacitive load capabilityHall-effect sensing
On-chip Hall-effect measurement platesDual direction Hall switch sensor UI2 level detection (widely variable)Detection range 10mT – 200mTInductive sensing
2 level detection and hysteresis for inductive sensingOnly external sense coil required (PCB trace)Low power consumption:
90μA (100Hz response, 3-channel capacitive)32μA (20Hz response, 3-channel capacitive)2.5μA (4Hz response, 1-channel capacitive wake-up)
Applications
Mobile electronics (phones/tablets)SAR safety requirements for laptops, tablets and phonesWearable devicesWhite goods and appliances
Application Notes
AZD104 - Novel way of PIR sensing with ProxFusion
