Texas Instruments' OPT3001 is a sensor that measures the intensity of visible light. The spectral response of the sensor tightly matches the photopic response of the human eye and includes significant infrared rejection.
The OPT3001 is a single-chip lux meter, measuring the intensity of light as visible by the human eye. The precision spectral response and strong IR rejection of the device enables the OPT3001 to accurately meter the intensity of light as seen by the human eye regardless of light source. The strong IR rejection also aids in maintaining high accuracy when industrial design calls for mounting the sensor under dark glass for aesthetics. The OPT3001 is designed for systems that create light-based experiences for humans, and an ideal preferred replacement for photodiodes, photoresistors, or other ambient light sensors with less human eye matching and IR rejection.
TI Design Link: Smart lighting & backlight control by ambient light & noise-immune proximity sensor reference design
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- Precision optical filtering to match human eye:
Rejects > 99% (typ) of IR
- Automatic full-scale setting feature simplifies software and ensures proper configuration
- Measurements: 0.01 lux to 83k lux
- 23-bit effective dynamic range with automatic gain ranging
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- Low operating current: 1.8 µA (typ)
- Operating temperature range: –40°C to +85°C
- Wide power-supply range: 1.6 to 3.6 V
- 5.5 V tolerant I/O
- Flexible interrupt system
- Small-form factor: 2.0 × 2.0 × 0.65 mm
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Texas Instruments' OPT3001 is a sensor that measures the intensity of visible light. The spectral response of the sensor tightly matches the photopic response of the human eye and includes significant infrared rejection.
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