FDC2114RGHR

Overview

The FDC2114RGHR is a four-channel capacitive-to-digital converter manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 3.6 V and supports an I2C interface with a maximum clock frequency of 400 kHz. The device provides 28-bit resolution per channel and functions across an operating temperature range from -40°C to +125°C. It is housed in a WQFN-16 package designed for surface mount installation.

Feature Summary

• Four independent channels for simultaneous capacitive sensing
• High-resolution 28-bit digital output capability
• Standard I2C communication interface support

Applications

• Capacitive touch button interfaces
• Proximity detection systems
• Liquid level sensing applications

Procurement Notes

Verify the specific suffix RGHR against the manufacturer's official documentation to confirm the tape and reel packaging configuration. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target design, as minor suffix variations may indicate different packaging or testing criteria.

Selection Notes

Select this component when high-resolution capacitive measurement is required across multiple channels. The wide operating temperature range makes it suitable for industrial environments. Confirm that the system power supply remains within the 2.7 V to 3.6 V limits and that the I2C bus speed does not exceed the specified maximum frequency.

Part Context

This device belongs to the FDC2x14 family of capacitive sensors. It shares functional similarities with other members like the FDC2214 but differs in its specific capacitive sensing architecture and resolution characteristics compared to inductive counterparts in the LDC series.

Replacement Considerations

Direct substitutes include other members of the FDC2x14 family such as the FDC2112 or FDC2214, provided pin compatibility and performance requirements align. Verify package dimensions and electrical parameters before swapping.