AS7261 datasheet(2/48 Pages) AMSOSRAM

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AS7261

XYZ Chromatic White Color Sensor +

NIR with Electronic Shutter and Smart

Interface

The AS7261is a chromatic white color sensor providing direct

XYZ color coordinates consistent with the CIE 1931 2° Standard

Observer color coordinates. It also maps the XYZ coordinates

to the x, y (Y) of the 2-dimensional color gamut and scales the

coordinates to the CIE 1976 u’v’ coordinate system.

The device provides accurate Correlated Color Temperature

(CCT) measurements and provides color point deviation from

the black body curve for white light color in the delta u’ v’

coordinate system. It also integrates a Near-IR channel for other

applications. LED drivers with programmable currents are

provided for electronic shutter applications.

The AS7261 integrates Gaussian filters into standard CMOS

silicon via Nano-optic deposited interference filter technology

and is packaged in an LGA package that provides a built in

aperture to control the light entering the sensor array.

Control and spectral data access is implemented through either

the I²C register set, or with a high level AT Spectral Command

set via a serial UART.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits & Features

The benefits and features of AS7261, XYZ Chromatic White

Color Sensor + NIR with Electronic Shutter and Smart Interface

are listed below:

Figure 1:

AS7261 Benefits and Features

Benefits

Features

• Calibrated Chromatic white data

• XYZ

• xy data (CIE 1931)

• DUV, u’v’, uv (CIE 1976)

• CCT, LUX

• Simple text-based command interface via UART,

or direct register read and write with interrupt

on sensor ready option on I²C

• UART or I²C slave digital Interface

• Lifetime-calibrated sensing with minimal drift

over time or temperature

• Filter set realized by silicon interference filters

• No additional signal conditioning required

• 16-bit ADC with digital access

General Description

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