SEN-15050 SparkFun

AS7265x Smart 18-Channel VIS to NIR Spectral ID 3-Sensor Chipset with Electronic Shutter The AS7265x chipset consists of three sensor devices AS72651 General Description with master capability, AS72652 and AS72653. The multispec- tral sensors can be used for spectral identification in a range from visible to NIR. Every of the three sensor devices has 6 in- dependent on-device optical filters whose spectral response is defined in a range from 410nm to 940nm with FWHM of 20nm. The AS72651, combined with the AS72652 (spectral response from 560nm to 940nm) and the AS72653 (spectral response from 410nm to 535nm) form an AS7265x 18-channel multi-spectral sensor chip-set. Using the AS7265x chipset requires the use of firmware. It must be loaded into a serial flash via a UART interface. The list of ams tested serial flash memories can be found in Figure 56. The components AS72651, AS72652 and AS72653 are pre-calibrated with a specific light source. The information about the conditions of the performed calibration (for example light source, gain, integration time) can be found in the table of optical characteristics of the respective compo- nent. Any operation other than these conditions might require a new calibration in the application. Each AS7265x device has two integrated LED drivers with programmable current and can be timed for electronic shutter applications. The device family integrates Gaussian filters into standard CMOS silicon via nano-optic deposited interference filter tech- nology in LGA packages that also provide built-in apertures to control the light entering the sensor array. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS7265x, Smart 18-Channel VIS to NIR Spectral ID 3-Sensor Chipset with Electronic Shutter are listed below: ams Datasheet Page 1 v1-04 2018-Jul-09 Document FeedbackAS72 65 x Gen e ra l De s c rip t ion Figure 1: AS7265x Chip-Set Benefits and Features Benefits Features 3 chip set including master device delivering 18 visible and NIR channels from 410nm to 940nm each with 20nm FWHM Compact 18-channel spectrometry chip-set solution UART or IC slave digital Interface Visible filter set realized by silicon interference filters 16-bit ADC with digital access No additional signal conditioning required Programmable LED drivers 2.7V to 3.6V with IC interface 20-pin LGA package 4.5mm x 4.7mm x 2.5mm Small, robust package, with built-in aperture -40C to 85C temperature range Applications The AS7265x applications include: Product/Brand authentication Anti-counterfeiting Portable spectroscopy Product safety/adulteration detection Horticultural and specialty lighting Material analysis Page 2 ams Datasheet Document Feedback v1-04 2018-Jul-09