Azoteq IQS7222A ProxFusion® ICs

Azoteq IQS7222A ProxFusion^® ICs offer a 1.71V to 3.5V voltage range, ±4000V electrostatic discharge, and +85°C max. temperature rating. These sensors are fully I²C compatible, and feature on-chip calculations that enable multiple application options. These highly flexible ProxFusion devices can configure up to 9 channels using external connections or internal sensors. Azoteq IQS7222A ProxFusion ICs are ideal for waterproof buttons, wear detection, SAR compliance in mobile devices, and HALL-effect dock detection.>

Features

• Highly flexible ProxFusion device
• 12 sensor pad connections (QFN-20) / 10 sensor pad connections (WLCSP-18)
• Configure up to 9 Channels using the external connections or internal sensor
• External Sensor Options
  • Up to 8 self capacitive touch/proximity sensors with additional distributed sensor padsⁱ
  • Up to 9 projected capacitive touch/proximity sensors
  • Up to 4 inductive sensor elements
• Internal sensor option
  • HALL-effect switch
• Built-in basic functions
  • Automatic tuning
  • Noise filtering
  • Differential measurements
  • Debounce and hysteresis
  • Dual direction trigger indication
• Built-in signal processing options
  • Slider output (0-255)
  • Gesture functions (swipe, tap, hold)
• Design simplicity
  • PC Software for debugging and obtaining optimal settings and performance
  • One-time programmable settings for custom power-on IC configuration
  • Auto-run from programmed settings for simplified integration
• Automated system power modes for optimal response vs consumption
• I²C communication interface with IRQ/RDY (up to fast plus – 1MHz)
• Event and streaming modes
• Customizable user interface due to programmable memory
• 1.8V to 3.5V supply voltage
• Small Packages
  • WLCSP18 (1.62mm x 1.62mm x 0.5mm) – interleaved 0.4mm x 0.6mm ball pitch
  • QFN20 (3mm x 3mm x 0.5mm) – 0.4mm pitch

Block Diagram

Applications

• SAR compliance in mobile devices
• Wear detection
• Appliance user interface (slider and buttons)
• Waterproof buttons (inductive)
• Low power wake-up buttons/proximity
• HALL-effect dock detection

more information: https://www.azoteq.com/product/iqs7222a/

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