IQS320001DNR

Overview

The IQS320001DNR is a ProxFusion® Series integrated circuit designed for dual-channel self-capacitive proximity sensing, optimized for SAR applications. It features an I²C interface supporting up to 1 MHz and operates within a supply voltage range of 1.71 V to 3.6 V. The device includes built-in automatic tuning, noise filtering, and SNR boost capabilities. It is available in a DFN12 package measuring 3 x 3 x 0.75 mm with a 0.5 mm pitch.

Feature Summary

• Dual channel self-capacitance sensor architecture
• I²C communication interface with selectable address
• Built-in automatic tuning and noise filtering
• Standalone output mode capability

Applications

• SAR safety sensors
• Keyboard back-lighting control
• Wireless charger wake-up detection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and marking options. Ensure compatibility with system voltage levels and I²C bus requirements before integration. Cross-reference the datasheet revision date to confirm current design specifications.

Selection Notes

Select this component for high-performance proximity sensing in environments with high capacitive loads. The device supports both I²C event/streaming modes and standalone operation. Consider the DFN12 package dimensions when designing the PCB footprint and thermal management strategy.

Part Context

This part belongs to the Azoteq IQS320 series, which utilizes patented ProxFusion® technology. The series is engineered for detecting small capacitive changes, making it suitable for safety-critical applications requiring reliable proximity detection without complex external calibration.

Replacement Considerations

Check the manufacturer's discontinuance notifications for alternative part numbers within the IQS320 family. Verify pinout compatibility and software register mapping if substituting with other variants in the same series.