General Description
The AMIS-74980x is a wide dynamic range family of ambient light sensors (ALS) with an analog or digital output. There are several versions of the ALS with analog output; one with 10uA current output at 1000lux all the way to 1mA at 1000lux. The digital output version has a built-in 16-bit ADC with a 2-wire SMBus or I2C digital interface. The sensor employs AMI Semiconductor’s proprietary CMOS image sensing technology which provides low noise and high dynamic range output signals and a light response similar to the response of the human eye.
This data sheet provides details of the DC characteristics, AC characteristics and programming information of AMIS-749803 (I2C) ALS.

KEY FEATUREs
• Senses ambient light and provides an output count proportional to the ambient light
• Human eye type of spectral response
• Standard CMOS process technology
• Low power consumption
• Linear response over the full operating range
• Senses intensity of ambient light from ~0lux to well over 100,000lux
• Built-in programmable integration times of 400ms, 200ms and 100ms
• Does not require any external components
• Built-in 16-bit ADC
• I2C serial port communication
   o Standard mode – 100kHz
   o Fast mode – 400kHz
• Provides comfortable levels of display depending on the viewing environment

Saves display power in applications such as:
• Cell phone
• PDA
• MP3 player
• GPS
• Video recorder