{"id":201256,"date":"2016-08-16T23:53:03","date_gmt":"2016-08-16T23:53:03","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/can-sar-32bits-a-sorties-munies-de-filtres-numeriques-1mech-s-sans-etat-de-latence\/"},"modified":"2016-08-16T23:53:03","modified_gmt":"2016-08-16T23:53:03","slug":"can-sar-32bits-a-sorties-munies-de-filtres-numeriques-1mech-s-sans-etat-de-latence","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/can-sar-32bits-a-sorties-munies-de-filtres-numeriques-1mech-s-sans-etat-de-latence\/","title":{"rendered":"CAN SAR 32bits \u00e0 sorties munies de filtres num\u00e9riques, 1M\u00e9ch\/s, sans \u00e9tat de latence"},"content":{"rendered":"

Le LTC2508-32 simplifie la conception d\u2019un tel dispositif CAN hybride en fournissant, \u00e0 la fois, une sortie 32bits, filtr\u00e9e num\u00e9riquement, \u00e0 faible niveau de bruit et une sortie 14bits \u00e0 1 M\u00e9ch.\/s, sans \u00e9tat de latence. Puisque ces sorties sont g\u00e9n\u00e9r\u00e9es \u00e0 partir d\u2019un seul c\u0153ur de CAN SAR de 32bits, les sorties de haute pr\u00e9cision et \u00e0 grande vitesse sont parfaitement \u00e9quilibr\u00e9es, m\u00eame lorsque la temp\u00e9rature de fonctionnement, l\u2019alimentation et la contrainte varient. Contrairement aux solutions traditionnelles qui utilisent deux CAN distincts non appari\u00e9s, la combinaison unique de la pr\u00e9cision et de la vitesse du LTC2508-32 permet des performances plus \u00e9lev\u00e9es du syst\u00e8me tout en r\u00e9duisant la taille de la r\u00e9alisation et abaissant le nombre de composants. Le LTC2508-32 est appropri\u00e9 aux applications qui requi\u00e8rent simultan\u00e9ment des mesures de pr\u00e9cision et un suivi rapide des signaux. La lin\u00e9arit\u00e9, exceptionnelle, de 3,5ppm max. garantie, associ\u00e9e \u00e0 une gamme dynamique pouvant atteindre 145dB, permet au LTC2508-32 d\u2019effectuer des mesures pr\u00e9cises en pr\u00e9sence de bruit. En m\u00eame temps, la sortie rapide \u00e0 1M\u00e9ch.\/s offre une repr\u00e9sentation du signal d\u2019entr\u00e9e \u00e0 14bits en diff\u00e9rentiel et 8bits en mode commun, ce qui permet des mises en \u0153uvre \u00e0 boucle de contr\u00f4le complexe avec des m\u00e9canismes de d\u00e9tection avanc\u00e9s. Le LTC2508-32, en plus, am\u00e9liore la pr\u00e9cision du syst\u00e8me tout en simplifiant la conception du traitement du signal, en num\u00e9risant directement le signal d\u2019entr\u00e9e sur toute la gamme d\u2019entr\u00e9e avec un taux de r\u00e9jection en mode commun de plus de 120dB.
\nLe LTC2508-32 int\u00e8gre un filtre num\u00e9rique qui peut \u00eatre configur\u00e9 afin d\u2019optimiser la performance en bruit de la sortie 32bits, de haute pr\u00e9cision, et la largeur de bande, pour une gamme dynamique jusqu\u2019\u00e0 145dB maximum et pour une vitesse de transmission de donn\u00e9es de 61\u00e9ch.\/s, en sortie. Le filtre num\u00e9rique int\u00e9gr\u00e9 effectue une att\u00e9nuation minimale de 80dB du bruit hors bande, r\u00e9duisant les demandes en filtrage analogique anticr\u00e9nelage et, de mani\u00e8re significative, la complexit\u00e9 du syst\u00e8me. La vitesse r\u00e9duite des donn\u00e9es de la sortie filtr\u00e9e num\u00e9riquement facilite aussi la communication avec des processeurs lents.
\nLe LTC2508-32 dissipe une puissance de 24mW \u00e0 partir d\u2019une seule alimentation de 2,5V. Le LTC2508-32 est disponible, maintenant, en un bo\u00eetier DFN de 24 broches, 7mm x 4mm, \u00e9conomisant de la surface.
\nwww.linear.com\/product\/LTC2508-32<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Linear Technology Corporation pr\u00e9sente le LTC2508-32, un convertisseur analogique-num\u00e9rique \u00e0 registre \u00e0 approximations successives (SAR), de 32bits, de tr\u00e8s grande pr\u00e9cision. Beaucoup d\u2019applications aux performances \u00e9lev\u00e9es, comprenant l\u2019acquisition de donn\u00e9es, le contr\u00f4le industriel et l\u2019instrumentation m\u00e9dicale, requi\u00e8rent \u00e0 la fois pr\u00e9cision et rapidit\u00e9. Ceci est r\u00e9alis\u00e9 en utilisant un CAN delta-sigma de haute r\u00e9solution et un CAN SAR tr\u00e8s rapide dans le m\u00eame syst\u00e8me.<\/p>\n","protected":false},"author":9,"featured_media":201257,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-201256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"CAN SAR 32bits \u00e0 sorties munies de filtres num\u00e9riques, 1M\u00e9ch...<\/title>\n<meta name=\"description\" content=\"Linear Technology Corporation pr\u00e9sente le LTC2508-32, un convertisseur analogique-num\u00e9rique \u00e0 registre \u00e0 approximations successives (SAR), de 32bits, de...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/201256\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CAN SAR 32bits \u00e0 sorties munies de filtres num\u00e9riques, 1M\u00e9ch\/s, sans \u00e9tat de latence\" \/>\n<meta property=\"og:description\" content=\"Linear Technology Corporation pr\u00e9sente le LTC2508-32, un convertisseur analogique-num\u00e9rique \u00e0 registre \u00e0 approximations successives (SAR), de 32bits, de tr\u00e8s grande pr\u00e9cision. Beaucoup d\u2019applications aux performances \u00e9lev\u00e9es, comprenant l\u2019acquisition de donn\u00e9es, le contr\u00f4le industriel et l\u2019instrumentation m\u00e9dicale, requi\u00e8rent \u00e0 la fois pr\u00e9cision et rapidit\u00e9. 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