{"id":231016,"date":"2014-09-24T22:00:00","date_gmt":"2014-09-24T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/convertisseurs-a-n-de-25-a-160-mech-s-basse-consommation\/"},"modified":"2014-09-24T22:00:00","modified_gmt":"2014-09-24T22:00:00","slug":"convertisseurs-a-n-de-25-a-160-mech-s-basse-consommation","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseurs-a-n-de-25-a-160-mech-s-basse-consommation\/","title":{"rendered":"Convertisseurs A\/N de 25 \u00e0 160 M\u00e9ch\/s basse consommation"},"content":{"rendered":"<p>Op&eacute;rationnels dans la plage de temp&eacute;rature industrielle ambiante comprise entre -40 &deg;C et +85 &deg;C, ces convertisseurs A\/N conviennent &agrave; un large &eacute;ventail d&rsquo;applications industrielles telles que le contr&ocirc;le de moteur, l&rsquo;imagerie m&eacute;dicale, les &eacute;quipements de test et mesure portatifs, ainsi que les applications de d&eacute;fense et de communications incluant les radios logicielles SDR et les syst&egrave;mes MIMO.<br \/>\nA la fr&eacute;quence d&rsquo;&eacute;chantillonnage la plus &eacute;lev&eacute;e de 160 M&eacute;ch\/s, ces CAN consomment seulement 200 mW par voie, soit 80 mW\/voie de moins que la plupart des produits similaires, avec un rapport consommation\/performances sup&eacute;rieur de 30 %. La consommation tombe &agrave; seulement 44 mW\/voie &agrave; la fr&eacute;quence la plus basse de 25 M&eacute;ch\/s.<br \/>\nCes convertisseurs sont encapsul&eacute;s en bo&icirc;tier QFN-48 de 7 x 7 mm, &agrave; l&rsquo;exception des versions LVDS 4 voies propos&eacute;es en bo&icirc;tier QFN-56 de 8 x 8 mm. La compatibilit&eacute; de brochage entre les diff&eacute;rents membres de cette famille permet de r&eacute;pondre aux besoins des syst&egrave;mes multiplateformes qui requi&egrave;rent diff&eacute;rents nombres de voies et fonctionnent &agrave; diff&eacute;rentes fr&eacute;quences d&rsquo;&eacute;chantillonnage.<br \/>\nTr&egrave;s compactes, les versions 4 voies &agrave; 160 M&eacute;ch\/s occupent moiti&eacute; moins de place que les solutions &eacute;quivalentes. Les versions JESD204B sont conformes aux sous-classes 0, 1 et 2 jusqu&rsquo;&agrave; 3,2 Gbits\/s et prennent en charge une voie par sortie de CAN jusqu&rsquo;&agrave; 160 M&eacute;ch\/s et une voie pour deux convertisseurs jusqu&rsquo;&agrave; 80 M&eacute;ch\/s.\n<\/p>\n<hr \/>\n<p>Les fonctions optionnelles de d&eacute;polissage (dither) et de correction des offsets (chopper) am&eacute;liorent la plage dynamique sans parasite SFDR et suppriment le bruit 1\/f. Les concepteurs peuvent ainsi optimiser les performances en fonction des exigences du syst&egrave;me.<br \/>\nPour encore optimiser les performances de ces convertisseurs, l&rsquo;amplificateur enti&egrave;rement diff&eacute;rentiel &agrave; sortie rail &agrave; rail basse consommation THS4541 assure un gain de bande passante de 850 MHz. Il est propos&eacute; en bo&icirc;tiers QFN &agrave; 10 broches de 2 x 2 mm et QFN &agrave; 16 broches de 3 x 3 mm. Ses hautes performances en distorsion harmonique HD2\/HD3 de 123\/-130 dBc &agrave; 1 MHz, facilitent la r&eacute;alisation d&rsquo;une solution enti&egrave;rement diff&eacute;rentielle coupl&eacute;e en courant alternatif ou continu avec, &agrave; la cl&eacute;, une plus grande flexibilit&eacute; et des performances accrues pour le convertisseur. Combin&eacute;s, ces circuits affichent &eacute;galement une tr&egrave;s basse consommation globale et forment une solution frontale analogique tr&egrave;s compacte.<br \/>\nPour acc&eacute;l&eacute;rer la conception, une gamme d&rsquo;outils de d&eacute;veloppement vient accompagner ces circuits. <\/p>\n<\/p>\n<p><a title=\"www.ti.com\/adc3k-pr-eu\" target=\"_blank\" href=\"http:\/\/www.ti.com\/adc3k-pr-eu\" rel=\"noopener\">www.ti.com\/adc3k-pr-eu<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le portefeuille de convertisseurs de donn\u00e9es de Texas Instruments s\u2019\u00e9tend avec la famille de convertisseurs analogique\/num\u00e9rique (CAN) de dimensions r\u00e9duites ADC3k qui pr\u00e9sente un excellent rapport consommation\/performances. Elle se d\u00e9cline en versions 12 et 14 bits, avec des fr\u00e9quences d\u2019\u00e9chantillonnage pouvant atteindre 160 M\u00e9ch\/s sur 2 ou 4 voies et une interface LVDS ou JESD204B.<\/p>\n","protected":false},"author":22,"featured_media":231017,"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-231016","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseurs A\/N de 25 \u00e0 160 M\u00e9ch\/s basse consommation ...<\/title>\n<meta name=\"description\" content=\"Le portefeuille de convertisseurs de donn\u00e9es de Texas Instruments s\u2019\u00e9tend avec la famille de convertisseurs analogique\/num\u00e9rique (CAN) de dimensions...\" \/>\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\/231016\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseurs A\/N de 25 \u00e0 160 M\u00e9ch\/s basse consommation\" \/>\n<meta property=\"og:description\" content=\"Le portefeuille de convertisseurs de donn\u00e9es de Texas Instruments s\u2019\u00e9tend avec la famille de convertisseurs analogique\/num\u00e9rique (CAN) de dimensions r\u00e9duites ADC3k qui pr\u00e9sente un excellent rapport consommation\/performances. Elle se d\u00e9cline en versions 12 et 14 bits, avec des fr\u00e9quences d\u2019\u00e9chantillonnage pouvant atteindre 160 M\u00e9ch\/s sur 2 ou 4 voies et une interface LVDS ou JESD204B.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/231016\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2014-09-24T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci6974_texas_adc3k_17sep14_r.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1099\" \/>\n\t<meta property=\"og:image:height\" content=\"877\" \/>\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\" 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