Capacitive-Based Human Proximity Detection for System Wake-Up & Interrupt Reference Design
TIDA-00220
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Capacitive-Based Human Proximity Detection for System Wake-Up and Interrupt (Rev. B)
(PDF 7138 KB)
11 Nov 2014
Description
This TI Design uses Texas Instruments' capacitive-to-digital converter technology to provide a high-precision method to wake up systems when human interaction occurs. TIDA-00220 demonstrates techniques for alternative sensor design, environmental compensation, and electromagnetic interference protection.
Features
- Detects Human Proximity using conductive nickel-print sensor, enabling flexible industrial design
- Sensor itself can be copper PCB material or other conductive materials
- Reduces environmental effects through several techniques
- Sensing range is dependent on sensor geometry (20 cm with tested hardware)
- Low power consumption of 6.2 mW
- This fully tested and characterized sub-system includes hardware design files (schematics and layout), firmware, and detailed user's guide with test results
See the Important Notice and Disclaimer covering reference designs and other TI resources.
