Product details

Quiescent current (Max) (uA) 2 Rating Catalog Operating temperature range (C) -40 to 85 Interface type I2C Input type Light
Quiescent current (Max) (uA) 2 Rating Catalog Operating temperature range (C) -40 to 85 Interface type I2C Input type Light
USON (DNP) 6 4 mm² 2 x 2
  • 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 83 k lux
  • 23-Bit Effective Dynamic Range With
    Automatic Gain Ranging
  • 12 Binary-Weighted Full-Scale Range Settings:
    < 0.2% (typ) Matching Between Ranges
  • Low Operating Current: 1.8 µA (typ)
  • Operating Temperature Range: –40°C to +85°C
  • Wide Power-Supply Range: 1.6 V to 3.6 V
  • 5.5-V Tolerant I/O
  • Flexible Interrupt System
  • Small-Form Factor: 2.0 mm × 2.0 mm × 0.65 mm
  • 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 83 k lux
  • 23-Bit Effective Dynamic Range With
    Automatic Gain Ranging
  • 12 Binary-Weighted Full-Scale Range Settings:
    < 0.2% (typ) Matching Between Ranges
  • Low Operating Current: 1.8 µA (typ)
  • Operating Temperature Range: –40°C to +85°C
  • Wide Power-Supply Range: 1.6 V to 3.6 V
  • 5.5-V Tolerant I/O
  • Flexible Interrupt System
  • Small-Form Factor: 2.0 mm × 2.0 mm × 0.65 mm

The 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.

Measurements can be made from 0.01 lux up to 83k lux without manually selecting full-scale ranges by using the built-in, full-scale setting feature. This capability allows light measurement over a 23-bit effective dynamic range.

The digital operation is flexible for system integration. Measurements can be either continuous or single-shot. The control and interrupt system features autonomous operation, allowing the processor to sleep while the sensor searches for appropriate wake-up events to report via the interrupt pin. The digital output is reported over an I2C- and SMBus-compatible, two-wire serial interface.

The low power consumption and low power-supply voltage capability of the OPT3001 enhance the battery life of battery-powered systems.

The 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.

Measurements can be made from 0.01 lux up to 83k lux without manually selecting full-scale ranges by using the built-in, full-scale setting feature. This capability allows light measurement over a 23-bit effective dynamic range.

The digital operation is flexible for system integration. Measurements can be either continuous or single-shot. The control and interrupt system features autonomous operation, allowing the processor to sleep while the sensor searches for appropriate wake-up events to report via the interrupt pin. The digital output is reported over an I2C- and SMBus-compatible, two-wire serial interface.

The low power consumption and low power-supply voltage capability of the OPT3001 enhance the battery life of battery-powered systems.

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Technical documentation

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Type Title Date
* Data sheet OPT3001 Ambient Light Sensor (ALS) datasheet (Rev. C) 06 Nov 2017
Application note Buildup Test Platform for Stand-Alone OPT300x 03 Apr 2020
Application note How to Select an Ambient Light Sensor for Your End Equipment (Rev. B) 25 Nov 2019
Technical article Understanding tamper detection sensors 18 Nov 2019
User guide BOOSTXL-BASSENSORS User's Guide 18 Jun 2018
Application note OPT3001: Ambient Light Sensor Application Guide (Rev. A) 19 Sep 2017
Application note OPT3001/-Q1:Automatic control of Display backlight using an Ambient Light Sensor 18 Aug 2017
Technical article Collecting environmental data with less energy and wiring 23 May 2017
More literature Engineering A Smarter Building 26 Jan 2016
Technical article Cold chain in the IoT 20 Nov 2015
Technical article How to bring the IoT to older buildings with automation technology 13 Aug 2015
Application note Understanding the I2C Bus 30 Jun 2015
User guide OPT3001EVM User's Guide (Rev. A) 14 Oct 2014

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Driver or library

OPT3001SW-LINUX — Linux driver for OPT3001 and OPT3006

The Linux driver supports the OPT30001 Digital Ambient Light Sensor (ALS) with High Precision Human Eye Response. The Linux driver supports communication through the I2C bus and registers to the IIO (Industrial Input/Output) class of the Linux kernel.
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OPT3001 STEP Model

SBOC449.ZIP (41 KB)
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