ISL29033

Ultra-Low Lux, Low Power, Integrated Digital Ambient Light Sensor with Interrupt Function

Product Status: Mass Production

OVERVIEW

The ISL29033 is an integrated ambient and infrared light-to-digital converter with I2 C (SMBus Compatible) interface. Its advanced, self-calibrated photodiode array emulates human eye response with excellent IR rejection. The on-chip 16-bit ADC is capable of rejecting 50Hz and 60Hz flicker caused by artificial light sources. The lux range select feature allows users to program the lux range for optimized counts/lux. Power consumption can be reduced to less than 0.3μA when powered down.

The ISL29033 supports a software and hardware interrupt that remains asserted until the host clears it through the I2 C interface. The function of ADC conversion continues without stopping after interrupt is asserted.

Designed to operate on supplies from 2.25V to 3.63V with an I2 C supply from 1.7V to 3.63V, the ISL29033 is specified for operation across the -40°C to +85°C ambient temperature range.

KEY FEATURES

  • Ambient light sensing
  • Simple output code directly proportional to lux
  • Variable conversion resolution up to 16 bits
  • Adjustable sensitivity up to 520 counts per lux
  • Measurement range: 0.0019 to 8,000lux with four selectable ranges
  • Program interrupt feature
  • Light sensor close to human eye response
  • Excellent light sensor IR and UV rejection
  • 75μA maximum operating current
  • 0.3μA maximum shutdown current
  • 6 Ld 2.0mmx2.1mmx0.7mm ODFN package

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL29033
Basic Information
Production Status
Mass Production
Peak Spectral Sensitivity
540 nm
VS (min)
2.25 V
VS (max)
3.63 V
ICC
65
Resolution Bits
16
Lux Range (min) (lux)
0.0019
Lux Range (max) (lux)
8000
Counts/Lux (max) (Counts)
65
Dark ADC Code @ Ev=0Lux (max) (Counts)
5
Gain Selection?
Yes
Qualification Level
Standard
Bus/Output Interface
I2C
Address Selection Pins?
No
Package Dimensions (mm)
2.0X2.1X0.7
Features
ALS interrupt
Enable Pin?
Software Enabled
Can Sample
YES
Temperature Range
-40 to +85

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