data-sheet MCS3AO 3-element colour sensor ? to5 with optics function the colour sensors are made of 3 si-pin photo diodes integrated on chip. they are carried out as segments of a ring with the diameter of 2,0 mm. the design as si-pin photo diodes allows signal frequencies up to mhz-range. in order to achieve a small cross talk between the photodiodes the individual sectors were separated from each other by additional structures. each of these photodiodes is sensitis ed with dielectric spectral filter for its colour range, preferably for the pr imary colours red, green and blue. application ? quality control ? monitoring the production ? control of manufacturing ? detection of colour marks features dielectric filters guarantie s the good optical properties of the colour sensors, such as: ? high transmission ? slight aging of the filter ? high temperature stability ? high signal frequency ? reduced cross talk ? small size (diameter of the optical sensitive surface ca. 2 mm) construction ? 3 on chip integrated pin photo diodes ? package version to5, with optical lense ? dielectric filters for the three colour ranges: red, green and blue ? electrical connections ? three anodes ? one common cathode germany and other countries: laser components gmbh, phone: +49 (0)8142 28640, fax: +49 (0)8142 286411, info@lasercomponents.com great britain: laser components (uk) ltd., phone: +44 1245 491 499, fax: +44 1245 491 801, info@lasercomponents.co.uk usa : laser components instrument group inc., phone: +1 603 821 7040, fax: +1 603 821 7041, info@laser-components.com
page 2 of 4 2 5 maximum ratings / characteristics (t a = 25c; per single diode) description symbol condition typ. value unit diameter of the light sensitivity area d 2,0 mm light sensitivity area per element a 0,85 mm2 photo sensitivity of colour ranges s max b = 470 nm g = 570 nm r = 650 nm 0,26 0,33 0,41 (0,25) a/w field of the spectral sensitivity 2%* b g r 400 - 510 490 - 610 590 - 750 nm reverse voltage v r 0...3,5v 2,5 v dark current i r v r = 5v <100 pa terminal capacitance c v r = 5v 50 pf rise and fall time of the photocurrent t r , t f <1 s noise equivalent power nep f r = 100 hz <10 -13 w/ hz crosstalk 1 % angle of incidence ? ? (filter) < 1%* 8 grad operating temperature range t op 0 ... +70 c storage temperature range t st -20 ... +80 c the optical lens allows the light collection at a acceptance angle width from 25. in this case, the optimal work distance is 2 to 6 cm. the use of greater work distances is to be a dapted by larger illumination intensity level. characteristic curve typical spectral sensitivity of the 3-element colour sensor (mcs3) 0,0 0,1 0,2 0,3 0,4 375 425 475 525 575 625 675 725 775 wave le ngth (nm ) magnitude (a/w) red green blue revisions rev. description approved the information disclosed herein was originated by and is the property of mazet. mazet reserves all patent, proprietary, design, use, sales, manufacturing an reproduction rights thereto. product names used in this publication ar e for identification purposes only and may be trademark of their respective companies. 1 v1.1 2001/03/20 germany and other countries: laser components gmbh, phone: +49 (0)8142 28640, fax: +49 (0)8142 286411, info@lasercomponents.com great britain: laser components (uk) ltd., phone: +44 1245 491 499, fax: +44 1245 491 801, info@lasercomponents.co.uk usa : laser components instrument group inc., phone: +1 603 821 7040, fax: +1 603 821 7041, info@laser-components.com
page 3 of 4 package overview 7,60 mm 5,10 mm 9,20 mm 1,20 mm 2,60 mm 0,40 mm 6,50 mm 10,0 mm 6,35 mm 8,34 mm to5 with optics (MCS3AO) germany and other countries: laser components gmbh, phone: +49 (0)8142 28640, fax: +49 (0)8142 286411, info@lasercomponents.com great britain: laser components (uk) ltd., phone: +44 1245 491 499, fax: +44 1245 491 801, info@lasercomponents.co.uk usa : laser components instrument group inc., phone: +1 603 821 7040, fax: +1 603 821 7041, info@laser-components.com
pin-configuration (top view) pin description 1 a1 red 2 a2 blue 3 a3 green k common cathode application circuit opposite figure shows a circuit for the conversion of photo current to an equivalent voltage. these voltage can be processed e.g. with an adc. by the selection of suitable resistors the output voltage range can be adjusted to the photo current value. (for example the pin-programmable transimpedance amplifier mti04 with the resistors 25k ? , 500k ? and 5m ? ) application note it is recommended to use an ir-block filter > 720nm (mcs3bt) or a light source with low infrared radiation for optimal operations of the colour sensor. ordering information colour sensor with to5-package with optical lense (plastic) MCS3AO evaluation board for jencolour sensors mcs-eb1 k a1 a2 a3 photo out x i v r to5-package mti04 mazet +v i i i r r r v v v mcs3 r red green blue 1 2 3 blue green red germany and other countries: laser components gmbh, phone: +49 (0)8142 28640, fax: +49 (0)8142 286411, info@lasercomponents.com great britain: laser components (uk) ltd., phone: +44 1245 491 499, fax: +44 1245 491 801, info@lasercomponents.co.uk usa: laser components instrument group inc., phone: +1 603 821 7040, fax: +1 603 821 7041, info@laser-components.com web: www.lasercomponents.com issue: 11/03 / v3 / hw / www/pdf/mazet/MCS3AO.pdf page 4 of 4
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