IQS7222C101QNR

Overview

The IQS7222C101QNR is a capacitance-to-digital converter controller from the Azoteq IQS7222C series, designed for touch sensing applications. It features 10 channels supporting mutual and self-capacitive configurations, along with inductive touch and proximity sensing capabilities. The device operates on an I2C interface within a QFN-20 package measuring 3 mm x 3 mm x 0.5 mm. Electrical specifications include a supply voltage range of 1.71 V to 3.5 V and an operating temperature range from -40°C to +85°C.

Feature Summary

• Supports mutual capacitive, self-capacitive, inductive touch, and proximity detection modes.

Applications

• Capacitive touch sensor interfaces
• Inductive touch and proximity sensing systems

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm RoHS compliance status via current datasheets. Note that this part carries an NRND (Not Recommended for New Designs) lifecycle status, indicating potential obsolescence risks for new product development projects.

Selection Notes

Select this component when 10-channel mixed-mode sensing is required. Ensure system power supplies remain within the 1.71 V to 3.5 V operational limits. Verify that the QFN-20 footprint fits the PCB layout constraints. Consider lifecycle implications due to the NRND designation before finalizing design choices.

Part Context

This part belongs to the IQS7222C family of ProxFusion sensors. It shares the core architecture with other variants like IQS7222B102QNR but differs in channel count and configuration options. The suffix QNR indicates specific packaging and tape-and-reel specifications defined by Azoteq.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, alternative solutions should be evaluated carefully against current design requirements and long-term availability needs.