Azoteq IQS243 & IQS904 IQ Switch®
ProxSense® Capacitive SensorsAzoteq IQS243 & IQS904 IQ Switch® ProxSense® Capacitive Sensors are fully integrated single channel or 3 channel capacitive contact and proximity sensors with market leading sensitivity and automatic tuning to the sense antenna. These sensors each provide a cost effective minimalist implementation requiring very few external components. The IQS243 3 channel capacitive sensor includes an I2C-compatible interface which provides full control to a host. The IQS904 single channel capacitive sensor provides a built-in controller for dimming applications. Azoteq IQS243 & IQS904 IQ Switch® ProxSense® Capacitive Sensors also offer extremely low current consumption, automatic tuning for optimal operation in various environments, and compensation against sensitivity reducing objects.
| Part Number | Datasheet | Description | Package | Supply Voltage |
| IQS243MSR | 
| 3 channel capacitive sensor with I2C-compatible interface | MSOP-10 | 1.8V to 3.6V |
| IQS904A-00000TSR |
| Single channel capacitive sensor for AC applications | TSOT-23-6 | 3V to 5.5V |
| IQS904D-00000TSR | Single channel capacitive sensor for DC applications | TSOT-23-6 | 3V to 5.5V |
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