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Wide-range (120° FoV at 1.6 meters) proximity sensing reference design with immunity to sunlight
TIDA-010021
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
- Wide-Range (120° FoV at 1.6 Meters) Proximity Sensing Ref. Des. Sunlight Immunit
(PDF 2562 KB)
19 Dec 2018
Description
Proximity sensing with wide field-of-view (FoV) is getting more and more popular and important for people detection in many applications. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems. A single proximity and distance sensor AFE (OPT3101) with three external NIR LEDs, and one photodiode covers a total 120° wide FoV and outputs accurate distance of people activity.
Features
- 3 NIR emitters support up to 3 zones of detection with a single OPT3101
- Total system field-of-view (FoV) of 120° is covered by three LED emitters and one photodiode
- Detection range up to 1.5 meters without lens
- Adaptive HDR allows measurement insensitive to object color and reflectivity and supports operation under high ambient condition (outdoor and indoor conditions)
- Proximity sensing and direct distance measurement output with accuracy of ±10%
- Exempt group lamp classification LED as emitter
See the Important Notice and Disclaimer covering reference designs and other TI resources.
