MAX44007_11 Datasheet, PDF (1/21 Pages) Maxim Integrated Products – Low-Power Digital Ambient Light Sensor with Enhanced Sensitivity

19-5492; Rev 1; 6/11
EVAALVUAAILTAIOBNLEKIT
Low-Power Digital Ambient Light Sensor
with Enhanced Sensitivity
General Description
The MAX44007 ambient light sensor features an I2C
digital output that is ideal for a number of portable appli-
cations such as smartphones, notebooks, and industrial
sensors. At less than 1µA operating current, it is the
lowest power ambient light sensor in the industry and
features an ultra-wide 22-bit dynamic range from 0.025
lux to 104,448 lux.
Low-light operation allows easy operation in dark glass
applications.
The on-chip photodiode’s spectral response is optimized
to mimic the human eye’s perception of ambient light
and incorporates IR and UV blocking capability. The
adaptive gain block automatically selects the correct lux
range to optimize the counts/lux.
The IC includes two I²C slave address options: 1011
010x and 1011 011x.
The IC is designed to operate from a 1.7V to 3.6V sup-
ply voltage range and consumes only 0.65µA in full
operation. It is available in a small, 2mm x 2mm x 0.6mm
UTDFN-Opto package.
Applications
Tablet PCs/Notebook Computers
TVs/Projectors/Displays
Digital Lighting Management
Portable Devices
Cellular Phones/Smartphones
Security Systems
Features
S Wide 0.025 Lux to 104,448 Lux Range
S Small, 2mm x 2mm x 0.6mm UTDFN-Opto
S VCC = 1.7V to 3.6V
S ICC = 0.65µA Operating Current
S -40­NC to +85NC Temperature Range
S Improved Sensitivity Behind Dark Glass
Ordering Information
PART
MAX44007EDT+
PIN-PACKAGE
6 UTDFN-Opto-EP*
TEMP RANGE
-40NC to +85NC
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Block Diagram
VISIBLE +IR
PHOTODIODE
MAX44007
IR
PHOTODIODE
16-BIT
ADC
6-BIT RANGE ^DIGITAL
CDR, TIM
SIGNAL
CONTROL ^PROCESSING
16-BIT
ADC
V_CC
SDA
SCL
I2C
AO
INT
N
GND
________________________________________________________________ Maxim Integrated Products   1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.