Wavelength (nm)

300

400

500

600

700

800

900

1000

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

D001

OPT3002

SCL

SDA

ADDR

VDD

OPT3002

INT

Light

GND

I

Interface

ADC

Optical

Filter

VDD

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCT PREVIEW Information. Product in design phase of

development. Subject to change or discontinuance without notice.

OPT3002

SBOS745 – MAY 2016

OPT3002 Light-to-Digital Sensor

1

1 Features

1

•

Wide Optical Spectrum: 300 nm to 1000 nm

•

Automatic Full-Scale Setting Feature Simplifies

Software and Configuration

•

Measurement Levels:

–

0.01 Lux to 83k Lux for WLED

•

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: –40°C to +85°C

•

Wide Power-Supply: 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

2 Applications

•

Intrusion and Door-Open Detection Systems

•

System Wake-Up Circuits

•

Medical and Scientific Instrumentation

•

Display Backlight Controls

•

Lighting Control Systems

•

Tablet and Notebook Computers

•

Thermostats and Home Automation Appliances

•

Outdoor Traffic and Street Lights

3 Description

The OPT3002 light-to-digital sensor provides the

functionality of an optical power meter within a single

device. This optical sensor greatly improves system

performance over photodiodes and photoresistors.

The OPT3002 has a wide spectral bandwidth, ranging

from 300 nm to 1000 nm. Measurements can be

made without the need to manually select the 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 results are

compensated for dark-current effects, as well as other

temperature variations.

Use the OPT3002 in optical spectral systems that

require detection of a variety of wavelengths, such as

optically-based diagnostic systems. The interrupt pin

system

features

autonomous

operation.

Power

consumption is very low, allowing the OPT3002 to be

used as a low-power, battery-operated, wake-up

sensor when an enclosed system is opened.

The OPT3002 is fully integrated and provides the

SMBus-compatible,

two-wire,

serial

interface.

Measurements are either continuous or single-shot.

While in autonomous mode, the OPT3002 power

consumption is as low as 0.8 µW at 0.8 SPS on a

1.8-V supply.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPT3002

USON (6)

2.00 mm x 2.00 mm

(1) For all available packages, see the package option addendum

at the end of the datasheet.

Spectral Response

Block Diagram