DESCRIPTION

· The IQS231A/B is a single-channel capacitive proximity/touch controller designed for SAR applications.

· It operates as a standalone device or via I2C interface, with configuration through OTP bits.

· The IQS231B variant offers improved temperature response and a broader low-temperature range.

FEATURES

· Integrated SAR user interface with a simple GPIO output.

· Quick release detection and sensitivity options to prevent false triggers.

· Operates in a wide range of RF environments with capacitive resolution down to 0.02fF.

· Supports capacitive loads up to 120pF with minimal external components.

· Features standalone failsafe mode and synchronization input/output for coordinated sensing.

· Low power sensing modes ranging from 4Hz to 100Hz, with constant sampling rates.

APPLICATIONS

· Suitable for devices requiring awake/activate on proximity function.

· Ideal for long-term detection applications with unique release and movement detection capabilities.

· Can be used in environments requiring robust temperature and interference compensation.