{"id":234032,"date":"2015-08-26T22:00:00","date_gmt":"2015-08-26T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/amplificateur-operationnel-de-precision-a-derive-nulle\/"},"modified":"2015-08-26T22:00:00","modified_gmt":"2015-08-26T22:00:00","slug":"amplificateur-operationnel-de-precision-a-derive-nulle","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/amplificateur-operationnel-de-precision-a-derive-nulle\/","title":{"rendered":"Amplificateur op\u00e9rationnel de pr\u00e9cision \u00e0 d\u00e9rive nulle"},"content":{"rendered":"<p>Cette gamme est con&ccedil;ue non seulement pour une r&eacute;duction significative du bruit, mais elle permet &eacute;galement de minimiser le co&ucirc;t, l&rsquo;encombrement et le temps de d&eacute;veloppement, tout en assurant un filtrage efficace des interf&eacute;rences &eacute;lectromagn&eacute;tiques (filtres EMI int&eacute;gr&eacute;s), et en supprimant la n&eacute;cessit&eacute; d&rsquo;un circuit de calibration.<br \/>\nCe mod&egrave;le haute pr&eacute;cision double voie b&eacute;n&eacute;fice d&rsquo;une r&eacute;jection de mode commun, de r&eacute;jections des alimentations et de gain de boucle ouverte exceptionnels d&eacute;passant les 145dB typiques. Il se caract&eacute;rise par un faible bruit de 5.8 nV\/Hz<sup>1\/2<\/sup> &agrave; 1 kHz typique et par une tension maximum de d&eacute;calage de seulement 5&micro;V &agrave; 25 &deg;C avec une d&eacute;rive maximum de 22 nV\/&ordm;C. Sa fr&eacute;quence de d&eacute;coupage est fix&eacute;e &agrave; 1,5 MHz pour une bande passante plus large en boucle ferm&eacute;e et un filtrage simplifi&eacute; et le produit Gain-Bande est de 2.7-MHz. En utilisation simple voie, la tension d&rsquo;entr&eacute;e peut descendre au rail n&eacute;gatif pour une sortie rail &agrave; rail.<br \/>\nEncapsul&eacute; en bo&icirc;tier SOIC-8 ou MSOP-8, cet amplificateur est particuli&egrave;rement adapt&eacute; &agrave; un large &eacute;ventail d&rsquo;applications d&rsquo;instrumentation-mesure de courant dans les charges &eacute;lectroniques, alimentations, commande de moteur et correction de tension de d&eacute;calage dans les amplificateurs composites utilis&eacute;s pour l&rsquo;instrumentation et autres applications. <\/p>\n<\/p>\n<p><a title=\"www.analog.com\/ada4522-2\" target=\"_blank\" href=\"http:\/\/www.analog.com\/ada4522-2.html\" rel=\"noopener\">www.analog.com\/ada4522-2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Premier \u00e9l\u00e9ment d\u2019une s\u00e9rie d\u2019amplificateurs op\u00e9rationnels de pr\u00e9cision haute tension, faible bruit et d\u00e9rive d\u2019offset quasi-nulle, l\u2019ADA4522-2 double voie d\u2019Analog Devices fonctionne dans une plage \u00e9tendue de tension d\u2019alimentation de 4,5 V \u00e0 55 V et offre des performances de r\u00e9duction du bruit exceptionnelles avec une tr\u00e8s faible tension de d\u00e9calage et une d\u00e9rive nulle (Zero-Drift).<\/p>\n","protected":false},"author":22,"featured_media":234033,"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-234032","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Amplificateur op\u00e9rationnel de pr\u00e9cision \u00e0 d\u00e9rive nulle ...<\/title>\n<meta name=\"description\" content=\"Premier \u00e9l\u00e9ment d\u2019une s\u00e9rie d\u2019amplificateurs op\u00e9rationnels de pr\u00e9cision haute tension, 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