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1 Features

1? Precision Optical Filtering to Match Human Eye:

– Rejects > 99% (Typical) of IR

? Automatic Full-Scale Setting Feature

? 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% (Typical) Matching Between Ranges

? Low Operating Current: 1.8 μA (Typical)

? Operating Temperature Range: –40°C to +85°C

? Wide Power-Supply Range: 1.6 V to 3.6 V

? Fixed I2C Address

? 5.5-V Tolerant I/O

? Fixed I2C Address

? Small-Form Factor:

– 0.856-mm × 0.946-mm × 0.226-mm PicoStar?

Package

? OPT3007 is Smaller Version of OPT3001

2 Applications

? Smart Watches

? Wearable Electronics

? Health Fitness Bands

? Display Backlight Controls

? Lighting Control Systems

? Tablet and Notebook Computers

? Cameras

3 Description

The OPT3007 is a single-chip lux meter, measuring

the intensity of visible light as seen by the human

eye. The OPT3007 is available in an ultra-small

PicoStar package, so the device fits into tiny spaces.

The OPT3007 has a fixed addressing scheme which

enables the device to operate with only four pins

connected. This enables the PCB designer to create

a bigger opening to the active sensor area.

The precision spectral response of the sensor tightly

matches the photopic response of the human eye.

With strong infrared (IR) rejection, the OPT3007

measures the intensity of light as seen by the human

eye, regardless of the light source. The IR rejection

also aids in maintaining high accuracy when design

requires mounting the sensor under dark glass. The

OPT3007, often in conjunction with backlight ICs or

lighting control systems, creates light-based

experiences for humans, and is a 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 singleshot.

The digital output is reported over an I2C- and

SMBus-compatible, two-wire serial interface.