MAX44004 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Digital Ambient Light Sensor

19-5997; Rev 0; 5/12
EVALUATION KIT AVAILABLE
MAX44004
Digital Ambient Light Sensor
General Description
The MAX44004 is a wide dynamic range, low-
power ambient light sensor (ALS) ideal for many light
sensing applications: tablets, displays, accessories,
medical devices, and light management systems.
The on-chip ambient sensor has the power to measure
the exact visible light from 0.03 lux to 65,000 lux and com-
municate through an I²C digital communication bus. The
IC has patented sensors, filters, and circuitry to mimic the
human eye response. With on-chip calibration registers,
it performs the same in different light conditions (i.e., fluo-
rescent, incandescent). The interrupt pin minimizes the
need of constant polling of the device, freeing up micro-
controller resources for efficient communication and thus
reducing overall power consumption. The part-to-part
matching is optimized by proprietary Maxim process to
speed up end-product development time.
The IC can operate from a V_DD of 1.7V to 3.6V, including
both supply and I²C times. It consumes just 5µA operat-
ing current.
Applications
Tablets and Netbooks
Displays, TVs, Projectors
Digital Lighting Management
Medical Devices
Industrial Automation
Benefits and Features
S Consumes Low Power
 5µA Supply Current
 Interrupt Pin Delivers Efficient Communication
S High Sensitivity
 0.03 Lux Sensitivity
S Easy to Design
 1.7V to 3.6V Supply Voltage
 Tight Part-to-Part Variation
S Reliable Light Sensing
 Perfect Rejection of 50Hz/60Hz Noise
 Adjustable Visible and Infrared Sensor Gain
S Tiny, 2mm x 2mm x 0.6mm OTDFN Package
S -40°C to +105°C Temperature Range
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX44004.related.
Typical Application Circuit
VDD
VDD
VIS + IR
(ALS)
IR (ALS)
ALS
PGA
14-BIT
SDA
MAX44004
I²C
SCL
MICRO-
CONTROLLER
ALS
INT
PGA
14-BIT
GND
A0
GND
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.