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Overview

Description

The ISL29101 is a low power ambient light-to-voltage optical sensor combining a photodiode array, a current amplifier and a micropower operational amplifier on a single monolithic IC. Similar to the human eye, the photodiode array has a peak response at 550nm and spans from 400nm to 600nm, rejecting UV light and IR light. The output voltage is proportional to the visible light intensity from 0.5 lux up to 10,000 lux. However, the input luminance range can go up to 30,000 lux with some compromise in linearity. A dark current compensation circuit aids the photodiode array to minimize temperature-dependent leakage currents in the absence of light, improving the light sensitivity at low lux levels. Housed in an ultra-compact surface mount 2mm x 2.1mm ODFN clear plastic package, this device is excellent for power saving control functions in cell phones, PDAs, and other handheld applications.

Features

  • 0.5 lux to 10,000 lux range
  • 1.8V to 3.3V supply range
  • Low supply current
  • Fast response time
  • Excellent linearity of output voltage vs. light intensity
  • Close to human eye response
  • Good IR rejection
  • Internal temperature compensation
  • Operating temperature range -40 °C to +85 °C
  • Ultra-compact surface mount package
  • Pb-free (RoHS compliant)

Comparison

Applications

  • Display and keypad dimming for:
    • Mobile devices: Smartphones, wearables, PDAs, GPS
    • Computing devices: Notebooks PCs, MacBooks, tablets
    • Consumer devices: LCD-TVs, digital cameras
  • Industrial, home automation and medical light sensing

Documentation

Type Title Date
Datasheet PDF 833 KB
End Of Life Notice PDF 1.17 MB
Product Change Notice PDF 138 KB
End Of Life Notice PDF 345 KB
Product Change Notice PDF 112 KB
Product Change Notice PDF 95 KB
6 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Other XLSX 35 KB
1 item

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models