{"id":230372,"date":"2014-06-26T22:00:00","date_gmt":"2014-06-26T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/isolateurs-numeriques-pour-systemes-de-communications-spi\/"},"modified":"2014-06-26T22:00:00","modified_gmt":"2014-06-26T22:00:00","slug":"isolateurs-numeriques-pour-systemes-de-communications-spi","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/isolateurs-numeriques-pour-systemes-de-communications-spi\/","title":{"rendered":"Isolateurs num\u00e9riques pour syst\u00e8mes de communications SPI"},"content":{"rendered":"<p>Fonctionnant &agrave; des fr&eacute;quences d&rsquo;horloge pouvant atteindre 40 MHz sur interface SPI, ces isolateurs num&eacute;riques sont plus de six fois plus rapides, plus de 80 % plus compacts et jusqu&rsquo;&agrave; 85 % moins on&eacute;reux que la majorit&eacute; des solutions existantes &agrave; base d&rsquo;isolateur num&eacute;rique ou d&rsquo;optocoupleur. Des fr&eacute;quences d&rsquo;horloge SPI &eacute;lev&eacute;es permettent d&rsquo;augmenter le d&eacute;bit des syst&egrave;mes d&rsquo;acquisition de donn&eacute;es, d&rsquo;accro&icirc;tre les performances et de r&eacute;duire le temps de r&eacute;action du syst&egrave;me. Gr&acirc;ce au niveau d&rsquo;int&eacute;gration fonctionnelle &eacute;lev&eacute;, les concepteurs de syst&egrave;mes disposent dans un seul bo&icirc;tier d&rsquo;une solution simple pour isoler les signaux SPI &agrave; haut d&eacute;bit, ainsi que les signaux d&rsquo;&eacute;tat et de contr&ocirc;le &agrave; bas d&eacute;bit les plus couramment utilis&eacute;s.<br \/>\nCes produits de la famille ADuM315x sont con&ccedil;us pour une gamme compl&egrave;te d&rsquo;applications de communications SPI &agrave; haut d&eacute;bit, parmi lesquelles les syst&egrave;mes de contr&ocirc;le distribu&eacute;s, les contr&ocirc;leurs logiques programmables (PLC) et les syst&egrave;mes de surveillance par capteur utilis&eacute;s dans les domaines de l&rsquo;automatisation industrielle, de l&rsquo;instrumentation et des commandes de moteur. Ils simplifient la conception de solutions d&rsquo;isolation num&eacute;rique compl&egrave;tes avec interface SPI en utilisant seulement trois composants, au lieu de 18 &agrave; 32 dans la plupart des solutions existantes.\n<\/p>\n<hr \/>\n<p>Ces circuits se caract&eacute;risent par une gigue et un temps de propagation r&eacute;duits dans les canaux CLK, MO-SI, MI-SO et SS, ce qui autorise la prise en charge des fr&eacute;quences d&rsquo;horloge SPI pouvant atteindre 40 MHz. Ils peuvent &eacute;galement fonctionner &agrave; la fr&eacute;quence d&rsquo;&eacute;chantillonnage maximale de certains convertisseurs A\/N de pr&eacute;cision 12, 16 et 18 bits. Enfin, ils offrent une tenue en tension d&rsquo;isolation de 3,75 kVeff, sera suivie par des mod&egrave;les &agrave; 5 kVrms dans le courant de l&rsquo;ann&eacute;e.<br \/>\nLa version ADuM3150 g&egrave;re une sortie d&rsquo;horloge avec retard sur le c&ocirc;t&eacute; ma&icirc;tre du composant qui peut &ecirc;tre utilis&eacute;e avec un port polyvalent suppl&eacute;mentaire en mode ma&icirc;tre pour fonctionner &agrave; des fr&eacute;quences d&rsquo;horloge pouvant atteindre 40 MHz. Les r&eacute;f&eacute;rences ADuM3151, ADuM3152 et ADuM3153 disposent de quatre canaux &agrave; haut d&eacute;bit ainsi que de trois canaux &agrave; bas d&eacute;bit ind&eacute;pendants suppl&eacute;mentaires dans diff&eacute;rentes configurations. Le mod&egrave;le ADuM3154 est &eacute;quip&eacute; d&rsquo;un syst&egrave;me de multiplexage capable de s&eacute;lectionner jusqu&rsquo;&agrave; quatre p&eacute;riph&eacute;riques asservis &agrave; partir d&rsquo;un seul isolateur. L&rsquo;ensemble de ces composants se pr&eacute;sente en bo&icirc;tier compact SSOP-20 et fonctionne dans la gamme de temp&eacute;rature de -40 &deg;C &agrave; +125 &deg;C.<\/p>\n<\/p>\n<p><a title=\"www.analog.com\/SPIsolator\" target=\"_blank\" href=\"http:\/\/www.analog.com\/SPIsolator\" rel=\"noopener\">www.analog.com\/SPIsolator<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bas\u00e9s sur la technologie d\u2019isolation num\u00e9rique propri\u00e9taire iCoupler, les isolateurs famille ADuM315x SPIsolator d\u2019Analog Devices sont optimis\u00e9s pour les syst\u00e8mes de communications \u00e0 interface s\u00e9rie SPI (Serial Peripheral Interface). Tr\u00e8s compacts, ils se distinguent par une fr\u00e9quence d\u2019horloge \u00e9lev\u00e9e et un co\u00fbt  restreint.<\/p>\n","protected":false},"author":22,"featured_media":230373,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-230372","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Isolateurs num\u00e9riques pour syst\u00e8mes de communications SPI ...<\/title>\n<meta name=\"description\" content=\"Bas\u00e9s sur la technologie d\u2019isolation num\u00e9rique propri\u00e9taire iCoupler, les isolateurs famille ADuM315x SPIsolator d\u2019Analog Devices sont optimis\u00e9s pour...\" \/>\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\/230372\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Isolateurs num\u00e9riques pour syst\u00e8mes de communications SPI\" \/>\n<meta property=\"og:description\" content=\"Bas\u00e9s sur la technologie d\u2019isolation num\u00e9rique propri\u00e9taire iCoupler, les isolateurs famille ADuM315x SPIsolator d\u2019Analog Devices sont optimis\u00e9s pour les syst\u00e8mes de communications \u00e0 interface s\u00e9rie SPI (Serial Peripheral Interface). Tr\u00e8s compacts, ils se distinguent par une fr\u00e9quence d\u2019horloge \u00e9lev\u00e9e et un co\u00fbt restreint.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/230372\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-06-26T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6894_analog-devices_spisolator_r.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"360\" \/>\n\t<meta property=\"og:image:height\" content=\"249\" \/>\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 name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"eeNews Europe\" \/>\n\t<meta name=\"twitter:label2\" 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