IQS7222C001QNR

Sensor And Detector Interfaces Overview

The IQS7222C001QNR is a capacitive touch sensor interface IC from Azoteq's ProxFusion series, designed for button, slider, and rotary encoder applications. It integrates 10 mutual capacitance channels and 8 self-capacitance channels, supporting inductive touch and proximity detection. The device operates on an I2C interface with a supply voltage range of 1.71V to 3.5V and draws a maximum supply current of 720µA. It is housed in a 20-lead UFQFN package with exposed pad (3x3mm) and supports surface mount installation across an operating temperature range of -40°C to +85°C.

Sensor And Detector Interfaces Feature Summary

• Supports multi-touch input configurations including buttons, sliders, and rotary encoders via mutual and self-capacitance sensing.
• Integrates proximity detection capabilities alongside standard touch sensing functions.
• Features low-power operation suitable for battery-powered portable devices.

Sensor And Detector Interfaces Applications

• Consumer electronics requiring compact touch interfaces
• Wearable devices with limited power budgets
• Industrial control panels needing durable touch inputs

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'QNR' against the manufacturer's official datasheet to confirm tape-and-reel packaging and lead-free status. Ensure the ordering part number matches the exact channel configuration and package type required for your PCB layout. Cross-reference with authorized distributors to confirm current availability and compliance certifications such as RoHS.

Sensor And Detector Interfaces Selection Notes

Select this component when a balance of high channel count and low power consumption is required. Compare with IQS7222B variants if different channel mixes are needed. Ensure the I2C address configuration meets system requirements. Verify that the 20-QFN footprint aligns with existing design constraints.

Sensor And Detector Interfaces Part Context

This part belongs to the IQS7222 family, which includes variants like IQS7222A, B, and C. These ICs share similar core technologies but differ in channel counts and specific feature sets. The IQS7222C variant specifically offers 10 mutual and 8 self-capacitance channels, distinguishing it from other family members with different input capacities.

Sensor And Detector Interfaces Replacement Considerations

Check for direct substitutes within the IQS7222 family such as IQS7222C101QNR or IQS7222C202QFR, ensuring pin compatibility and software configurator settings match. Verify that any replacement maintains the same package dimensions and electrical characteristics.