ISL29125

Digital Red, Green and Blue Color Light Sensor with IR Blocking Filter

OVERVIEW

The ISL29125 is a low power, high sensitivity, RED, GREEN and BLUE color light sensor (RGB) with an I2 C (SMBus compatible) interface. Its state-of-the-art photodiode array provides an accurate RGB spectral response and excellent light source to light source variation (LS2LS). The ISL29125 is designed to reject IR in light sources allowing the device to operate in environments from sunlight to dark rooms. The integrating ADC rejects 50Hz and 60Hz flicker caused by artificial light sources. A selectable range allows the user to optimize sensitivity suitable for the specific application. In normal operation mode the device consumes 56µA, which reduces to 0.5µA in power-down mode. The ISL29125 supports hardware and software user programmable interrupt thresholds. The Interrupt persistency feature reduces false trigger notification. The device operates on supplies (VDD) from 2.25V to 3.63V, I2 C supply from 1.7V to 3.63V, and operating temperature across the -40°C to +85°C range.

KEY FEATURES

  • 56µA operating current, 0.5µA shutdown current
  • Selectable range (Via I2C)
  • I2C (SMBus compatible) output
  • ADC resolution 16 bits
  • Programmable interrupt windows
  • Two optical sensitivity ranges
  • Range 0 = 5.7m lux to 375 lux
  • Range 1 = 0.152 lux to 10,000 lux
  • Operating power supply 2.25 to 3.63V
  • I2C power supply 1.7V to 3.63V
  • 6 Ld ODFN (1.65x1.65x0.7mm) package

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL29125
Basic Information
Production Status
Mass Production(*)
Peak Spectral Sensitivity
640 nm, 530 nm, 470 nm
VS (min)
2.25 V
VS (max)
3.63 V
ICC
56
Resolution Bits
4, 8, 12, 16
Lux Range (min) (lux)
0.0057
Lux Range (max) (lux)
10000
Dark ADC Code @ Ev=0Lux (max) (Counts)
5
Gain Selection?
No
Qualification Level
Standard
Bus/Output Interface
I2C
Address Selection Pins?
No
Package Dimensions (mm)
1.65x1.65x0.7
Features
Digital Output, Low Power, Red, Green, and Blue Color Light Sensor
Enable Pin?
No
Can Sample
YES
Temperature Range
-40 to +85

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