Ultra-thin ambient light sensor (ALS)


Product details


Quiescent current (Max) (uA) 2 Rating Catalog Operating temperature range (C) -40 to 85 Interface type I2C Input type Light open-in-new Find other Ambient light sensors

Package | Pins | Size

PicoStar (YMF) 6 1 mm² .896 x .986 open-in-new Find other Ambient light sensors


  • Precision Optical Filtering to Match Human Eye:
    • Rejects > 99% (typ) of IR
  • Automatic Full-Scale Setting Feature Simplifies Software and Provides Optimal Configuration
  • Measurements: 0.01 lux to 83k 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:
    • 0.856 mm × 0.946 mm × 0.226 mm PicoStar™ Package
  • OPT3006 is Smaller Version of OPT3001
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The OPT3006 is a single-chip lux meter, measuring the intensity of visible light as seen by the human eye. The OPT3006 is available in an ultra-small PicoStar package, so the device fits into tiny spaces.

The precision spectral response of the sensor tightly matches the photopic response of the human eye. With strong infrared (IR) rejection, the OPT3006 accurately meters the intensity of light as seen by the human eye, regardless of the light source. The strong IR rejection also aids in maintaining high accuracy when design requires mounting the sensor under dark glass. The OPT3006, often in conjunction with backlight ICs or lighting control systems, creates light-based experiences for humans, and is an ideal replacement for photodiodes, photoresistors, or lower-performing ambient light sensors.

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 with 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 OPT3006 enhance the battery life of battery-powered systems.

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Technical documentation

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Type Title Date
* Datasheet OPT3006 Ultra-Thin Ambient Light Sensor datasheet Oct. 20, 2016
Application note Buildup Test Platform for Stand-Alone OPT300x Apr. 03, 2020
Application note How to Select an Ambient Light Sensor for Your End Equipment (Rev. B) Nov. 25, 2019
Technical article Understanding tamper detection sensors Nov. 18, 2019
Application note OPT3006: Ambient Light Sensor in Wearable Applications Jul. 27, 2017
Technical article Collecting environmental data with less energy and wiring May 23, 2017
User guide OPT3006EVM User's Guide Oct. 19, 2016
Technical article How to bring the IoT to older buildings with automation technology Aug. 13, 2015

Design & development

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Hardware development

document-generic User guide

The OPT3001 is an ambient light sensor (ALS) with a digital output integrated circuit.  It uses a two-wire interface that works with the I2C protocol making it ideal for many applications.  The OPT3001EVM is a platform for evaluating the performance of the OPT3001 under various (...)

  • Small Form Factor
  • USB Hardware Interface
  • Intuitive GUI Software
  • Protective Plastic Case
  • 100mil spaced test points for easy experimentation with external controllers
document-generic User guide

The OPT3006 is an ambient light sensor (ALS) with a digital output integrated circuit. It comes in an ultra-thin Picostar package form factor, allowing it to fit into small spaces. The OPT3006 is mounted on a Flexible-PCB, which contains an example cut-out that allows the light to illuminate the (...)

  • Small, ultra-thin form factor, demonstrating Flex-PCB mounting
  • Demonstration of FPCB cutout, allowing light to illuminate the sensor
  • Mechanical-only device example for size demonstration
  • USB Hardware Interface
  • Intuitive GUI Software
  • Protective Plastic Case
  • 100mil spaced test points for easy (...)

Software development

Linux driver for OPT3001 and OPT3006
OPT3001SW-LINUX 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.
Linux Mainline Status

Available in Linux Main (...)

Design tools & simulation

SBOC487.ZIP (5461 KB)

Reference designs

Accurate Temperature, Light Sensing, and Diagnostics Reference Design for Smart Grid Applications
TIDA-00811 — This reference design provides accurate measurements of ambient light intensity used to detect arc flash faults with a fast response of 1 ms, protecting or minimizing damages to power distribution switchgear. This design also monitors temperature (using switch, analog, digital or remote ), humidity (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
PICOSTAR (YMF) 6 View options

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