APDS-9800
Integrated Ambient Light and Proximity Sensor
Data Sheet
Description
The APDS-9800 integrates ambient light sensor (ALS),
proximity sensor (PS) and ambient light cancelation
functions in a single module. The module contains three
chips in one small package: an ambient light sensor
IC, a proximity sensor signal conditioning circuit and a
proximity sensor that includes both an LED emitter and
detector.
The ambient light sensor has a spectral response close to
the CIE standard photopic observer and a current output.
The proximity sensor signal conditioning circuit has an
LED driver and a receiver circuit that has both analog and
digital outputs. With the built-in LED, the proximity sensor
is able to sense the proximity of an object, such as a nger,
hand or head that is close to a portable device. The PS also
features an excellent ambient light cancellation circuit for
operation in direct sunlight.
By detecting the ambient light illuminance level, the
ambient light sensor can control the brightness of display
backlights.
The proximity sensor makes many interesting and useful
applications possible. For example, a proximity sensor
can detect the proximity of a mobile phone user’s head
and turn o or on the phone keypad and LCD backlight.
By combining an ambient light sensor and proximity
sensor in a single compact module, mobile phones, PDAs
and notebooks can have additional features or benet
from increased performance, such as in battery life.
Features
x Integrated module with ambient light sensor, proximity
sensor and signal conditioning IC
x Small form factor: L 4.95 x W 3.0 x H 1.45 mm
x Supply voltage range: 2.4 V to 3.6 V
x Spectral responsivity closely matches the human eye
x Built-in LED and detector for proximity detection
x Low sensitivity variation across various light sources
x Linear output across a wide illumination range
x Operates under strong sunlight and articial light
x Controlled LED driving current, pulse and burst
parameters
x Controlled output voltage and integration time with
an external resistor and capacitor
x LED stuck High protection
x Both analog and digital outputs available
x Shutdown mode for low current consumption
x Lead-free and RoHS compliant
Applications
x PDAs
x Mobile phones
x Portable and handheld devices
x Personal computers, netbooks and notebooks
x Amusement products
x Games
x Vending Machines
