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OPT3001

更新时间: 2024-11-06 01:07:31
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德州仪器 - TI /
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描述
Ambient Light Sensor (ALS)

OPT3001 数据手册

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OPT3001  
SBOS681B JULY 2014REVISED DECEMBER 2014  
OPT3001 Ambient Light Sensor (ALS)  
1 Features  
3 Description  
The OPT3001 is a sensor that measures the intensity  
of visible light. The spectral response of the sensor  
tightly matches the photopic response of the human  
eye and includes significant infrared rejection.  
1
Precision Optical Filtering to Match Human Eye:  
Rejects > 99% (typ) of IR  
Automatic Full-Scale Setting Feature Simplifies  
Software and Ensures Proper Configuration  
The OPT3001 is a single-chip lux meter, measuring  
the intensity of light as visible by the human eye. The  
precision spectral response and strong IR rejection of  
the device enables the OPT3001 to accurately meter  
the intensity of light as seen by the human eye  
regardless of light source. The strong IR rejection  
also aids in maintaining high accuracy when industrial  
design calls for mounting the sensor under dark glass  
for aesthetics. The OPT3001 is designed for systems  
that create light-based experiences for humans, and  
an ideal preferred replacement for photodiodes,  
photoresistors, or other ambient light sensors with  
less human eye matching and IR rejection.  
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: 2.0 mm × 2.0 mm × 0.65 mm  
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.  
2 Applications  
Display Backlight Controls  
Lighting Control Systems  
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 via the interrupt pin. The  
digital output is reported over an I2C- and SMBus-  
compatible, two-wire serial interface.  
Tablet and Notebook Computers  
Thermostats and Home Automation Appliances  
Point-of-Sale Terminals  
Outdoor Traffic and Street Lights  
Cameras  
The low power consumption and low power-supply  
voltage capability of the OPT3001 enhance the  
battery life of battery-powered systems.  
Device Information(1)  
PART NUMBER  
OPT3001  
PACKAGE  
BODY SIZE (NOM)  
Spectral Response: The OPT3001 and Human Eye  
USON (6)  
2.00 mm x 2.00 mm  
1
OPT3001  
Human Eye  
(1) For all available packages, see the package option addendum  
at the end of the datasheet.  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
Block Diagram  
VDD  
VDD  
OPT3001  
SCL  
SDA  
INT  
I2C  
Interface  
Ambient  
Light  
ADC  
Optical  
Filter  
ADDR  
300  
400  
500  
600  
700  
800  
900  
1000  
GND  
Wavelength (nm)  
D001  
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.  
 
 
 
 

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