{"id":225944,"date":"2012-12-25T23:00:00","date_gmt":"2012-12-25T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/amplificateur-operationnel-haute-precision\/"},"modified":"2012-12-25T23:00:00","modified_gmt":"2012-12-25T23:00:00","slug":"amplificateur-operationnel-haute-precision","status":"publish","type":"post","link":"https:\/\/test.ecinews.fr\/fr\/amplificateur-operationnel-haute-precision\/","title":{"rendered":"Amplificateur op\u00e9rationnel haute pr\u00e9cision"},"content":{"rendered":"<p>Cet amplificateur se caract&eacute;rise par une bande passante typique de 3,9 MHz et un bruit de tension de 7 nV\/Hz<sup>1\/2<\/sup> &agrave; 1 kHz pour une consommation typique de 400 &micro;A &agrave; 25&deg;C sous une tension d&rsquo;alimentation nominale de &plusmn;15 Vcc. Il est notamment sp&eacute;cifi&eacute; pour fonctionner sous une tension d&rsquo;alimentation double de &plusmn;5 V &agrave; &plusmn;15 V pour un courant de polarisation d&rsquo;entr&eacute;e inf&eacute;rieur &agrave; 1 nA. Il se d&eacute;cline en deux grades de tension de d&eacute;calage et de d&eacute;rive thermique, et deux conditionnements. En grade B et bo&icirc;tier SOIC-8, il pr&eacute;sente une tension de d&eacute;calage inf&eacute;rieure &agrave; 25 &micro;V pour une d&eacute;rive de 0,25 &micro;V\/&deg;C. En grade A, il offre respectivement une tension de 50 ou 90 &micro;V pour des d&eacute;rives de 0.55 ou 1.2 &micro;V\/&deg;C pour les bo&icirc;tiers SOIC-8 et MSOP-8. Tous fonctionnent dans la plage de temp&eacute;rature &eacute;tendue de -40 &deg;C &agrave; +125 &deg;C.<br \/>\nCes caract&eacute;ristiques font de cet amplificateur une solution &eacute;conomique bien adapt&eacute;e aux interfaces de capteurs frontaux dans des applications telles que les modules d&rsquo;entr&eacute;e des commandes de processus o&ugrave; un haut niveau de pr&eacute;cision et de lin&eacute;arit&eacute; jouent un r&ocirc;le critique pour mesurer les donn&eacute;es produites par les capteurs. Son utilisation est pr&eacute;conis&eacute;e avec les convertisseurs num&eacute;rique\/analogique et analogique\/num&eacute;rique 12, 14 et 16 bits jusqu&rsquo;&agrave; 1 M&eacute;ch\/s de la gamme, parmi lesquels les r&eacute;f&eacute;rences AD5444, AD7265et AD7266.<\/p>\n<p><a title=\"www.analog.com\/ADA4077-2\" target=\"_blank\" href=\"http:\/\/www.analog.com\/ADA4077-2\" rel=\"noopener\">www.analog.com\/ADA4077-2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour les circuits d\u2019amplification frontaux, Analog Devices pr\u00e9sente l\u2019ADA4077-2, un amplificateur op\u00e9rationnel haute pr\u00e9cision qui affiche une excellente combinaison de tension et d\u00e9rive de d\u00e9calage, bande passante, vitesse de balayage, bruit en tension et courant d\u2019alimentation. Il convient sp\u00e9cifiquement aux applications de contr\u00f4le de processus, de surveillance environnementale et chimique, de commande de moteurs et d\u2019instrumentations et de test \u00e9lectroniques.<\/p>\n","protected":false},"author":22,"featured_media":225945,"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-225944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Amplificateur op\u00e9rationnel haute pr\u00e9cision ...<\/title>\n<meta name=\"description\" content=\"Pour les circuits d\u2019amplification frontaux, Analog Devices pr\u00e9sente l\u2019ADA4077-2, un amplificateur op\u00e9rationnel haute pr\u00e9cision qui affiche une...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/test.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/225944\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amplificateur op\u00e9rationnel haute pr\u00e9cision\" \/>\n<meta property=\"og:description\" content=\"Pour les circuits d\u2019amplification frontaux, Analog Devices pr\u00e9sente l\u2019ADA4077-2, un amplificateur op\u00e9rationnel haute pr\u00e9cision qui affiche une excellente combinaison de tension et d\u00e9rive de d\u00e9calage, bande passante, vitesse de balayage, bruit en tension et courant d\u2019alimentation. 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