AS7261 Spectral Sensing Engine
Tri-stimulus XYZ + NIR sensor device with electronic shutter and smart interface
- Tri-stimulus XYZ+NIR realized by silicon interference filters
- Selectable UART or I²C interface
- 16-bit ADC with digital access
- Integrated programmable LED drivers
- integrated micro controller
- 20-pin LGA package 4.5mm x 4.7mm x 2.5mm, with built-in aperture
- In-factory calibrated
- Stable filter conditions over temperature and life time
- Compact true-color sensing, XYZ coordinates direct from the sensor
- Signal processing on chip, reduced hardware costs
- Sample illumination without external LED driver
- Easy connecting to mobile devices or external µController
|Sensor Type||XYZ tri-stimulus/standard observer|
|Applications||Color analysis and color calibration|
|I/O||I²C master or UART (mode configurable)|
|Package||20-pin LGA with aperture|
|Size [mm]||4.5 x 4.7 x 2.5|
|Supply Voltage [V]||2.7 to 3.6|
|Temperature Range [°C]||-40 to +85|
The AS7261 integrates Gaussian interference filter technology to enable chromatic white color sensor which provides direct XYZ color coordinates consistent with the CIE 1931 2° standard observer color coordinates. Additional mapping of XYZ coordinates to the x, y (Y) of the 2-dimensional color gamut and scales of the CIE 1976 u’v’ coordinate system, providing accurate correlated color temperature (CCT) measurements and color point deviation from the black body curve for white light color in the ∆u’v’ coordinate system. A near-IR channel and LED drivers with programmable currents increase application flexibility, including support for electronic shutter applications.
Control and spectral data access is implemented either through either the I²C virtual register set, or via the serial UART enabling use of the high level smart spectral command set.
- Color/CCT sensing
- Fluid or reagent analysis
- Color point comparison
- Display calibration
|AS726xDemoKit||Application Board||Demo Kit for AS726x|
|Application Data||Reference Design and Schematic AS726x 1V1||English|
|Evaluation Software||AS72xx_EvalSW_v5-1-0.zip AS72xx Firmware Update using GUI||EN|
|Evaluation Software||AS726x_EvalSW_v3-4-2.zip AS726x Spectral Sensing iSPI GUI||EN|
|Datasheet||Document version 1-00||English|
|Application Note||AS72xx – EEPROM Updating using I2C 1V02||English|
|Application Note||AS726x Design Considerations||English|
|Application Note||AS72xx How to Flash AS72xx Firmware using||English|
|Application Note||AS72xx How to Program AS72xx Firmware with FlashCatUSB 1V24||English|
|Quick Start Guide||AquaSensor Quick Start Guide for Hardware and Software based on AS7261||English|
|User Guide||AS726x-iSPI Evaluation Kit User Guide||English|
|User Guide||AS726x-iSPI Evaluation Kit GUI User Guide||English|
|RoHS Certificate||RoHS AS7261||English|
|Product Change Notification||CN25-2019 (Customer Information AS72xx)||English|
AS7261N - Spectral Sensor
Control and spectral data access is implemented through an I²C register set.
Not Recommended for New Designs
ams-OSRAM AG does not recommend using this product for new designs. Please see AS7261 for possible replacement or contact your local sales representative for further information.
AS7262 Consumer Grade Smart 6-Channel VIS Sensor
The AS7262 integrates Gaussian filters into standard CMOS silicon via nano-optic deposited interference filter technology and is packaged in a 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.
Not Recommended for New Designs
ams-OSRAM AG does not recommend using this product for new designs. Please see AS7341 for possible replacement or contact your local sales representative for further information.
TCS3430 Tristimulus Color Sensor
The TCS3430 is ideally suited for use in smartphone applications to improve color measurement and intensity of ambient light conditions. The sensor can also be used to assist the smartphone camera sensor with color sensing of ambient light to enhance and improve picture white balance to deliver more realistic and vibrant images.