{"id":228930,"date":"2014-01-20T23:00:00","date_gmt":"2014-01-20T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseurs-a-n-14-bits-a-plusieurs-voies-en-boitier-compact\/"},"modified":"2014-01-20T23:00:00","modified_gmt":"2014-01-20T23:00:00","slug":"convertisseurs-a-n-14-bits-a-plusieurs-voies-en-boitier-compact","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/convertisseurs-a-n-14-bits-a-plusieurs-voies-en-boitier-compact\/","title":{"rendered":"Convertisseurs A\/N 14 bits \u00e0 plusieurs voies en bo\u00eetier compact"},"content":{"rendered":"<p>Ces convertisseurs sont bien adapt&eacute;s &agrave; une utilisation dans les applications d&rsquo;instrumentation et &agrave; ultra-sons, d&rsquo;imagerie m&eacute;dicale, de contre-mesures militaires ou de r&eacute;ception de communications. La version &agrave; 16 voies de conversion A\/N dans un seul bo&icirc;tier ne dissipe que 58 mW par voie &agrave; la fr&eacute;quence d&rsquo;&eacute;chantillonnage de 65 M&eacute;ch\/s, ce qui r&eacute;duit les probl&egrave;mes d&rsquo;ordre thermique dans les projets comptant un grand nombre de voies. Pour sa part, le mod&egrave;le &agrave; 8 voies dissipe 110 mW par voie &agrave; 125 M&eacute;ch\/s.<br \/>\nPropos&eacute;s en bo&icirc;tier compact CSP-BGA 144 de 10 x 10 mm, ces deux CAN embarquent un &eacute;chantillonneur\/bloqueur (S\/H) et fonctionnent dans une plage dynamique sans interf&eacute;rence (SFDR) sup&eacute;rieure &agrave; 90 dBc avec un rapport signal\/bruit de 74 dBFS ou sup&eacute;rieur.<br \/>\nOutre une basse consommation et un encombrement r&eacute;duit, ces circuits se caract&eacute;risent par leur simplicit&eacute; d&rsquo;utilisation, des sorties d&rsquo;horloge de donn&eacute;es (DCO&plusmn; 1, DCO&plusmn; 2) fonctionnant &agrave; des fr&eacute;quences pouvant atteindre respectivement 500 MHz et 455 MHz, et la prise en charge d&rsquo;un double d&eacute;bit pour la conversion des donn&eacute;es. Ils requi&egrave;rent une tension d&rsquo;alimentation unique de 1,8 V et une horloge de fr&eacute;quence d&rsquo;&eacute;chantillonnage compatible LVPECL\/CMOS\/LVDS qui assure des performances maximales. Aucun composant de r&eacute;f&eacute;rence ou d&rsquo;attaque externe n&rsquo;est n&eacute;cessaire pour de nombreuses applications.<br \/>\nDes cartes d&rsquo;&eacute;valuation d&eacute;di&eacute;es &agrave; chaque version sont &eacute;galement propos&eacute;es. <\/p>\n<\/p>\n<p><a title=\"www.analog.com\/AD9249\" target=\"_blank\" href=\"http:\/\/www.analog.com\/AD9249\" rel=\"noopener\">www.analog.com\/AD9249<\/a><a title=\"www.analog.com\/AD9681\" target=\"_blank\" href=\"http:\/\/www.analog.com\/AD9681\" rel=\"noopener\"><br \/>\nwww.analog.com\/AD9681<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u2019un tr\u00e8s bas niveau de consommation, les convertisseurs analogiques\/num\u00e9riques 14 bits AD9249 16 voies \u00e0 65 M\u00e9ch\/s et AD9681 8 voies \u00e0 125 M\u00e9ch\/s d\u2019Analog Devices r\u00e9pondent aux besoins des concepteurs de solutions d\u2019acquisition de donn\u00e9es multivoies haute performance et \u00e9conomes en \u00e9nergie, o\u00f9 la compacit\u00e9 du bo\u00eetier joue un r\u00f4le essentiel dans la conception globale.<\/p>\n","protected":false},"author":22,"featured_media":228931,"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-228930","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseurs A\/N 14 bits \u00e0 plusieurs voies en bo\u00eetier compact ...<\/title>\n<meta name=\"description\" content=\"D\u2019un tr\u00e8s bas niveau de consommation, les convertisseurs analogiques\/num\u00e9riques 14 bits AD9249 16 voies \u00e0 65 M\u00e9ch\/s et AD9681 8 voies \u00e0 125 M\u00e9ch\/s...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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