OPT3007 Datasheet, PDF (1/39 Pages) Texas Instruments – OPT3007 Ultra-Thin Ambient Light Sensor

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OPT3007 Ultra-Thin Ambient Light Sensor
OPT3007
SBOS864 – AUGUST 2017
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
Spectral Response: The OPT3007 and Human Eye
1
OPT3007
0.9
Human Eye
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
300 400 500 600 700 800 900 1000
Wavelength (nm)
D001
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 single-
shot. The digital output is reported over an I²C- and
SMBus-compatible, two-wire serial interface.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPT3007
PicoStar (6)
0.856 mm × 0.946 mm ×
0.226 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Block Diagram
VDD
Ambient
Light
Optical
Filter
OPT3007
ADC
VDD
I²C
Interface
SCL
SDA
GND
Copyright © 2017, Texas Instruments Incorporated
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. PRODUCTION DATA.