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NOA1305 - Ambient Light Sensor

Description

The NOA1305 ambient light sensor (ALS) is designed for handheld applications and integrates a 16 bit ADC, a 2

wire I2C digital interface, internal clock oscillator and a power down mode.

Features

  • Senses Ambient Light and Provides an Output Count Proportional to the Ambient Light Intensity.
  • Photopic Spectral Response.
  • Dynamic Dark Current Compensation.
  • IR Rejection Eliminates Need for Additional IR Photodiode.
  • Less than 120 mA Active Power Consumption in Normal Operation.
  • Less than 2 mA Power Dissipation in Power Down Mode.
  • Interrupt Signal Notifies Host of Significant Intensity Changes.
  • Wide Operating Voltage Range.

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Datasheet preview – NOA1305

Datasheet Details

Part number NOA1305
Manufacturer ON Semiconductor
File Size 246.69 KB
Description Ambient Light Sensor
Datasheet download datasheet NOA1305 Datasheet
Additional preview pages of the NOA1305 datasheet.

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Full PDF Text Transcription

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NOA1305 Ambient Light Sensor with I2C Interface and Dark Current Compensation Description The NOA1305 ambient light sensor (ALS) is designed for handheld applications and integrates a 16−bit ADC, a 2−wire I2C digital interface, internal clock oscillator and a power down mode. The built in dynamic dark current compensation and precision calibration capability coupled with excellent IR and 50/60 Hz flicker rejection enables highly accurate measurements from very low light levels to full sunlight. The device can support simple count equals lux readings in interrupt−driven or polling modes. The NOA1305 employs proprietary CMOS image sensing technology from ON Semiconductor to provide large signal to noise ratio (SNR) and wide dynamic range (DR) over the entire operating temperature range.
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