ISL29120
Digital Output, Low Power, Red, Green, and Blue Color Light Sensor
Key Features
- 70μA Operating Current, 0.3μA Shutdown Current
- I2C (SMBus Compatible) Output
- Programmable 4, 8, 12 or 16-bits ADC Resolution
- Programmable Interrupt Windows
- Two Optical Sensitivity Ranges
- 2.25 to 3.63V Operating Power Supply
- 1.7V to 3.6V Supply for I2C Interface
- 2.0mmx2.1mmx0.7mm 6 Ld ODFN Package
Description
The ISL29120 is a low power, high sensitivity, integrated red, green, and blue light sensor with an I2C (SMBus Compatible) interface. Its state-of-the-art photodiode array provides an accurate red, green and blue spectral response. The ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. A selectable range allows the user to optimize sensitivity suitable for the specific application.
ISL29120 is optimized for sensing red, green and blue light components in an non-infrared environment (fluorescent and LED lighting). When operating in infrared rich environments, an external IR blocking filter should be used for accurate measurements.
In normal continuous operation, the ISL29120 power consumption is 70μA, which reduces to 0.3μA in power down mode. In polling mode, the auto-power-down function shuts down most of the device after each ADC conversion.
The ISL29120 supports both hardware and software interrupts. The interrupt thresholds are user programmable. The Interrupt persistency feature reduces false trigger notification.
Designed to operate on supplies from 2.25V to 3.3V and I2C supply from 1.7V to 3.6V, the ISL29120 is specified for operation over the -40°C to +85°C ambient temperature range.
Applications
- Smart Phone, PDA, GPS, Tablet PCs, LCD-TVs, Digital Picture Frames, Digital Cameras
- Dynamic Display Color Balancing
- Printer Color Enhancement
- Industrial/Commercial LED Lighting Color Management
- Ambient Light Color Detection/Correction
- OLED Display Aging Compensation
