OPT3002 Datasheet, PDF (1/8 Pages) Texas Instruments – Light-to-Digital Sensor

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OPT3002 Light-to-Digital Sensor
OPT3002
SBOS745 – MAY 2016
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
optical power reading directly from the I²C- and
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.
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
300
Spectral Response
400 500 600 700 800
Wavelength (nm)
OPT3002
900 1000
D001
Light
Optical
Filter
Block Diagram
VDD
OPT3002
ADC
VDD
I²C
Interface
SCL
SDA
INT
ADDR
GND
1
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.