Capacitive sensing is a low-power, high-resolution contactless sensing technique that can be applied to a variety of applications ranging from proximity detection to gesture recognition. The sensor in a capacitive sensing system is any metal or conductor, allowing for highly flexible system design.
The main challenge limiting sensitivity in capacitive sensing applications is noise susceptibility of the sensors. With the FDC2x1x-Q1 resonant sensing architecture, performance can be maintained even in presence of fluorescent light.
The FDC2x1x-Q1 is a multi-channel family of high-resolution, high-speed capacitance-to-digital converters for implementing capacitive sensing solutions. The devices employ an innovative narrow-band based architecture to offer high rejection of noise while providing high resolution at high speed. The devices support a wide excitation frequency range, offering flexibility in system design.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | FDC2x1x-Q1 Multi-Channel, High Resolution Capacitance-to-Digital Converter for Capacitive Sensing Applications datasheet (Rev. A) | PDF | HTML | Oct 10, 2024 |
| Application note | Common Inductive and Capacitive Sensing Applications (Rev. B) | PDF | HTML | Jun 22, 2021 | |
| Application note | Simulate Inductive Sensors Using FEMM (Finite Element Method Magnetics) (Rev. A) | PDF | HTML | Jun 16, 2021 | |
| Application note | Capacitive Proximity Sensing Using FDC2x1y (Rev. A) | Oct 20, 2017 | ||
| Application note | Ground Shifting in Capacitive Sensing Applications | PDF | HTML | May 27, 2016 | |
| Application note | Power Consumption Analysis for Low Power Capacitive Sensing Applications | PDF | HTML | Jan 18, 2016 | |
| Application note | Derivative Integration Algorithm for Proximity Sensing | Sep 29, 2015 | ||
| Application note | Capacitive Sensing: Direct vs Remote Liquid Level Sensing Performance Analysis (Rev. A) | Jul 24, 2015 |
For additional terms or required resources, click any title below to view the detail page where available.
The FDC2214 evaluation module demonstrates capacitive sensing technology to detect the presence of a conductive or non-conductive target. The evaluation module includes two PCB capacitive sensors that connect to two of the four channels of the FDC2214. An MSP430 microcontroller is used to interface (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WSON (DNT) | 12 | Ultra Librarian |
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