IQS7222B ProxFusion® Capacitive Touch Sensors Azoteq IQS7222B ProxFusion® Capacitive Touch Sensors are sensor fusion devices for various multi-button applications. Azoteq IQS7222B ProxFusion Sensors feature 18-channel mutual and 8-channel self-capacitive touch and proximity controllers. These sensors are fully I2C-compatible and feature on-chip calculations that enable the IC to respond effectively even in the lowest-power modes. Applications include remote control user interfaces, home automation device user interfaces, and wireless speaker controls.