Part Number: EAALSDIC2020A1

Description
This is a light-to-digital converter that transforms light intensity to a digital signal output capable of
I2C interface. It is an advanced ambient light sensor with excellent temperature compensation designed by CMOS
process. Each device combines one broadband photodiode (visible plus infrared), one infrared-responding
photodiode, amplifiers, and digital circuits in a single chip. Two integrating ADCs convert the photodiode currents to a
digital output that represents the irradiance measured on each channel with 16-bits resolution. This digital output can
be connect to a micro-controller where illumination (ambient light level) in lux is derived using an empirical formula to
approximate the human eye response. This device supports several interrupt features that can be
used in many different applications.

Features
Good low light sensitivity
Excellent infrared immunity
Good output linearity across light intensity
Automatically rejects 50/60-Hz lighting ripple
Spectral response close to the human eye’s response
Precisely measures illumination in diverse lighting conditions
Programmable interrupt function with user-defined upper and lower threshold settings
16bits digital output with I2C (standard-mode and fast-mode, up to 400 KHz)
Excellent temperature compensation: -40 to 85℃
Size : 2.0mm(L)*2.0mm(W)*0.63mm(H)
The product itself will remain within RoHS compliant version
Compliance with EU REACH
Compliance Halogen Free(Br < 900ppm, Cl < 900ppm, Br+Cl < 1500ppm)

Applications
Vehicle, Security, Camcorder, TFT LCD, Note Book, PDA, Mobile Phone,
Smart Phone.