FDC2214RGHR

Overview

The FDC2214RGHR is a four-channel capacitance-to-digital converter manufactured by Texas Instruments. It features a 28-bit resolution and operates within a supply voltage range of 2.7V to 3.6V. The device supports I2C communication and functions at temperatures between -40°C and +125°C. It is housed in a 16-pin WQFN package with dimensions of 4mm x 4mm. The component draws approximately 2.1mA during operation and is designed for high-precision sensing applications requiring robust noise rejection.

Feature Summary

• High-resolution 28-bit capacitance measurement capability
• Integrated I2C interface for digital data output
• Wide operating temperature range suitable for industrial environments
• Low power consumption design for battery-operated systems

Applications

• Capacitive touch sensor interfaces
• Proximity detection systems
• Liquid level sensing
• Ice and frost buildup quantification

Procurement Notes

Verify the specific suffix RGHR corresponds to the reel packaging configuration when ordering. Confirm that the automotive qualification is not required, as this standard version lacks AEC-Q100 certification found in the QR variant. Ensure compatibility with the 16-WQFN footprint during PCB layout. Check for RoHS compliance status relevant to your region's regulations before finalizing procurement.

Selection Notes

Select the FDC2214RGHR when four independent channels are necessary for simultaneous capacitance monitoring. Choose this part over the LDC series if measuring capacitive rather than inductive changes. Consider the FDC2214QRGHRQ1 if automotive reliability standards are mandatory. Evaluate the need for 28-bit resolution against system noise floors to ensure optimal performance without unnecessary complexity.

Part Context

This component belongs to the FDC2x1x family of capacitance-to-digital converters from Texas Instruments. It shares architectural similarities with other members like the FDC2212 but offers four channels instead of two. The RGHR suffix indicates a tape-and-reel packaging format intended for automated surface-mount assembly processes.

Replacement Considerations

The FDC2214QRGHRQ1 serves as an automotive-grade alternative with identical pinout and functionality but includes AEC-Q100 qualification. Direct substitutes within the same family include the FDC2212RGHR for reduced channel requirements.