{"id":222183,"date":"2011-08-02T22:00:00","date_gmt":"2011-08-02T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/national-semiconductor-etend-sa-famille-de-circuits-sensor-afe\/"},"modified":"2011-08-02T22:00:00","modified_gmt":"2011-08-02T22:00:00","slug":"national-semiconductor-etend-sa-famille-de-circuits-sensor-afe","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/national-semiconductor-etend-sa-famille-de-circuits-sensor-afe\/","title":{"rendered":"National Semiconductor \u00e9tend sa famille de circuits Sensor AFE"},"content":{"rendered":"<p>Ces circuits Sensor AFE LMP900xx &agrave; brochage compatible, viennent en compl&eacute;ment du LMP90100, introduit plus t&ocirc;t cette ann&eacute;e. Associ&eacute;s &agrave; l&rsquo;outil logiciel et syst&egrave;me de d&eacute;veloppement <a target=\"_blank\" href=\"https:\/\/intranet.tim-europe.com\/owa\/redir.aspx?C=1ef42d5cf46642f49af23033e10155ff&amp;URL=http%3a%2f%2fwww.national.com%2fen%2fwebench%2fsensors%2findex.html\" rel=\"noopener\">WEBENCH Sensor AFE Designer<\/a> de National, ils permettent aux ing&eacute;nieurs d&rsquo;&eacute;tudes de connecter un capteur, de configurer le circuit, d&rsquo;optimiser la conception, et de t&eacute;l&eacute;charger les donn&eacute;es de configuration dans le circuit Sensor AFE, pour un prototypage imm&eacute;diat. Des semaines voire des mois de conception sont ainsi r&eacute;duits &agrave; seulement quelques minutes gr&acirc;ce au syst&egrave;me de d&eacute;veloppement int&eacute;gr&eacute; mat&eacute;riel\/logiciel de National.<br \/>\nLes concepteurs de syst&egrave;me peuvent choisir parmi une famille de circuits Sensor AFE &agrave; brochage compatible, r&eacute;pondant &agrave; leurs besoins sp&eacute;cifiques au niveau r&eacute;solution, canaux et sources de courant. Les circuits de la famille LMP900xx sont &eacute;quip&eacute;s de CAN sigma-delta 16 ou 24 bits, &agrave; entr&eacute;e programmable (multiplex&eacute;e) permettant d&rsquo;interfacer jusqu&rsquo;&agrave; 4 entr&eacute;es diff&eacute;rentielles, ou 7 entr&eacute;es simples, selon n&rsquo;importe quelle combinaison de types d&rsquo;entr&eacute;e. L&rsquo;interface au microcontr&ocirc;leur est assur&eacute;e par une interface s&eacute;rie SPI 4 fils standard &agrave; correction d&rsquo;erreurs CRC, et sept ports E\/S &agrave; usage g&eacute;n&eacute;ral. Chaque circuit est garanti sur toute la plage de temp&eacute;rature -40&deg;C &agrave; +125&deg;C.<br \/>\nLa calibration continue en arri&egrave;re-plan des circuits LMP900xx &eacute;limine la d&eacute;rive d&rsquo;offset et de gain en fonction du temps et de la temp&eacute;rature pour toutes les valeurs de gain (1, 2, 4, 8, 16, 32, 64 et 128), sans affecter le signal mesur&eacute;. Chaque canal est configurable ind&eacute;pendamment au niveau gain et fr&eacute;quence d&rsquo;&eacute;chantillonnage, avec balayage automatique, manuel ou simple des canaux s&eacute;lectionn&eacute;s. Ils assurent &eacute;galement le diagnostic en continu des capteurs en t&acirc;che de fond, pour d&eacute;tecter les courts-circuits, les faux-contacts et les signaux hors tol&eacute;rances.<br \/>\nLes circuits Sensor AFE 24 bits multicanaux LMP90099\/98\/97 existent en diff&eacute;rentes configurations de canaux, et sont fournis avec ou sans sources de courants appari&eacute;es :<br \/>\n&#8211; Le LMP90099 a une r&eacute;solution de 24 bits, 4 entr&eacute;es diff&eacute;rentielles et 7 entr&eacute;es simples, et pas de source de courant.<br \/>\n&#8211; Le LMP90098 a une r&eacute;solution de 24 bits, 2 entr&eacute;es diff&eacute;rentielles, 4 entr&eacute;es simples, et deux sources de courant appari&eacute;es.<br \/>\n&#8211; Le LMP90097 a une r&eacute;solution de 24 bits, 2 entr&eacute;es diff&eacute;rentielles et 4 entr&eacute;es simples, et pas de source de courant. <\/p>\n<p>Les circuits Sensor AFE 16 bits multicanaux LMP90080\/79\/78\/77 existent en diff&eacute;rentes configurations de canaux, et sont fournis avec ou sans sources de courants appari&eacute;es : <\/p>\n<p><a target=\"_blank\" href=\"https:\/\/intranet.tim-europe.com\/owa\/redir.aspx?C=1ef42d5cf46642f49af23033e10155ff&amp;URL=http%3a%2f%2fwww.national.com%2fsensorAFE\" rel=\"noopener\">www.national.com\/sensorAFE<\/a>.<\/p>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>National Semiconductor vient de pr\u00e9senter sept nouveaux circuits Sensor AFE multicanaux, qui offrent aux concepteurs de syst\u00e8me un plus grand choix, allant des hautes performances au faible co\u00fbt, avec diff\u00e9rentes configurations de canaux, diff\u00e9rentes sources de courant, et diff\u00e9rentes r\u00e9solutions. Les circuits Sensor AFE LMP900xx constituent une approche facile pour \u00e9laborer une solution signal pour interfacer des capteurs \u00e0 un microcontr\u00f4leur. Ils sont destin\u00e9s aux capteurs de pr\u00e9cision servant \u00e0 superviser ou contr\u00f4ler la temp\u00e9rature, la pression, la charge, la force, le mouvement et la position, ou la tension dans des applications industrielles, m\u00e9dicales, ou de test et de mesure.<\/p>\n","protected":false},"author":22,"featured_media":222184,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-222183","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"<title>National Semiconductor \u00e9tend sa famille de circuits Sensor AFE ...<\/title>\n<meta name=\"description\" content=\"National Semiconductor vient de pr\u00e9senter sept nouveaux circuits Sensor AFE multicanaux, qui offrent aux concepteurs de syst\u00e8me un plus grand choix, allant...\" \/>\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\/222183\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"National Semiconductor \u00e9tend sa famille de circuits Sensor AFE\" \/>\n<meta property=\"og:description\" content=\"National Semiconductor vient de pr\u00e9senter sept nouveaux circuits Sensor AFE multicanaux, qui offrent aux concepteurs de syst\u00e8me un plus grand choix, allant des hautes performances au faible co\u00fbt, avec diff\u00e9rentes configurations de canaux, diff\u00e9rentes sources de courant, et diff\u00e9rentes r\u00e9solutions. Les circuits Sensor AFE LMP900xx constituent une approche facile pour \u00e9laborer une solution signal pour interfacer des capteurs \u00e0 un microcontr\u00f4leur. Ils sont destin\u00e9s aux capteurs de pr\u00e9cision servant \u00e0 superviser ou contr\u00f4ler la temp\u00e9rature, la pression, la charge, la force, le mouvement et la position, ou la tension dans des applications industrielles, m\u00e9dicales, ou de test et de mesure.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/222183\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2011-08-02T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci2254_ns.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1680\" \/>\n\t<meta property=\"og:image:height\" content=\"1120\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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