MAX44005

RGB Color, Temperature,

and Infrared Proximity Sensor

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General Description

The MAX44005 integrates 7 sensors in one product: red,

green, blue (RGB) sensors; an ambient light (clear) sen-

sor; a temperature sensor; an ambient infrared sensor,

This highly integrated optical sensor includes a tempera-

ture sensor to improve reliability and performance.

The IC computes all the light information with parallel

data converters to make simultaneous light measurement

in a very short time. The chip consumes only 15FA in

RGBC + IR mode and operates at 1.8V supply voltage.

The IC’s RGB sensing capability improves the perfor-

mance of end products by providing robust and precise

information for ambient color sensing and color tempera-

ture measurement.

The integrated proximity sensor uses a single-pulse LED

scheme to achieve very low power consumption. This

method also improves sunlight rejection and 50Hz/60Hz

noise to deliver reliable proximity measurements. With this

technology, the IC is a perfect solution for touch-screen

portable devices and presence detection applications.

The on-chip ambient sensor has the ability to make wide

The IC’s digital computation power provides program-

mability and flexibility for end-product design. A pro-

grammable interrupt pin minimizes the need to poll the

device for data, freeing up microcontroller resources,

and reducing system software overhead, and ultimately,

power consumption. All these features are included in a

tiny, 2mm x 2mm x 0.6mm optical package.

Features

S

Optical Sensor Fusion for True Color Sensing



7 Parallel ADCs



R, G, B, IR, ALS, Proximity Sensing



Temperature Sensing

S

Superior Sensitivity



0.001 Lux

S

Optimized for System Power Efficiency



10µA in Ambient Mode



15µA in RGBC + IR Mode



0.01µA in Shutdown Mode

S

Integrated 1-Pulse IR LED Driver for Proximity

Sensing



Improved Sensitivity and Power Saving



Sunlight Rejection

S

Digital Functionalities



Programmable Channel Gains



Adjustable Interrupt Thresholds

S

High-Level Integration



7 Sensors in a 2mm x 2mm x 0.6mm Package

Functional Diagram

19-6292; Rev 0; 5/12

Ordering Information appears at end of data sheet.

Smartphones

Tablet PCs

TVs/Displays

Digital Light

Management

Presence Detection

Industrial Sensors

Color Correction

Applications

EVALUATION KIT AVAILABLE

µC

MAX44005

SDA

SCLK

14-BIT

ADC

14-BIT

ADC

14-BIT

ADC

AMB

PGA

AMB

PGA

AMB

PGA

AMB

PGA

RED

DRV

GREEN

BLUE

CLEAR

GND

GND

COMP

AMB

PGA

TEMP

14-BIT

ADC

14-BIT

ADC

14-BIT

ADC

AMB

PGA

AMBIENT

CANCELLATION

14-BIT

ADC

AMB

PGA

INT

IR

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.