{"id":70817,"date":"2018-03-09T23:15:21","date_gmt":"2018-03-09T23:15:21","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/celdas-analogicas-de-alta-linealidad-programables-digitalmente-en-tecnologa%c2%ada-cmos\/"},"modified":"2018-03-09T23:15:21","modified_gmt":"2018-03-09T23:15:21","slug":"celdas-analogicas-de-alta-linealidad-programables-digitalmente-en-tecnologa%c2%ada-cmos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/dispositivos-semiconductores\/celdas-analogicas-de-alta-linealidad-programables-digitalmente-en-tecnologa%c2%ada-cmos\/","title":{"rendered":"Celdas anal\u00f3gicas de alta linealidad programables digitalmente en tecnolog\u00eda cmos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda  Teresa Sanz Pascual <\/strong><\/h2>\n<p>En esta memoria se realiza una breve introducci\u00f3n a la situaci\u00f3n actual de los circuitos integrados mixtos anal\u00f3gico-digitales ,abordando temas como la necesidad de buscar nuevas soluciones para el dise\u00f1o anal\u00f3gico en baja tensi\u00f3n, las limitaciones delprocesamiento de se\u00f1ales con la t\u00e9cnica mosfet-c y la importancia de los circuitos anal\u00f3gicos programables.Se comprueba la factibilidad del empleo de amplificadores operacionales de transconductancia (otas) en la implementaci\u00f3n desistemas de procesamiento en tiempo continuo, incluso en aplicaciones en las que la carga es resistiva, realizando un an\u00e1lisis te\u00f3ricoy una comprobaci\u00f3n experimental exhaustivos de sus limitaciones. Se proponen tambi\u00e9n diversas estructuras de dos etapas con losrequisitos fundamentales para el procesamiento de se\u00f1ales en condiciones de carga resistiva: elevada transconductancia gm yelevada intensidad de salida io. Se trata de soluciones concretas que corroboran la validez del ota como elemento activo ensistemas con carga resistiva, consiguiendo un aumento sustancial de la anchura de banda con menores consumos de potencia y \u00e1rea ,al tiempo que un mejor comportamiento din\u00e1mico, en t\u00e9rminos de tiempo de establecimiento y niveles de tensi\u00f3n de salida. por otra parte, se lleva a cabo el estudio en frecuencia y de linealidad de dos celdas resistivas mos: el circuito resistivo mos(mrc) y el designado con las siglas mcd, basado en el principio de linealidad de divisi\u00f3n de corriente. Asimismo, se lleva a caboun estudio del efecto del mismatching sobre la distorsi\u00f3n no lineal de ambas configuraciones. Se demuestra lo inapropiado de losmodelos spice para el estudio de la linealidad de las estructuras resistivas mos y se proponen equivalentes anal\u00edticos alternativosm\u00e1s adecuados.Tambi\u00e9n se estudian estructuras resistivas mos programables, implementadas mediante bancos de transistores mos en paralelo oempleando el divisor de corriente mos r-2r, y se describe la metodolog\u00eda de dise<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Celdas anal\u00f3gicas de alta linealidad programables digitalmente en tecnolog\u00eda cmos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Celdas anal\u00f3gicas de alta linealidad programables digitalmente en tecnolog\u00eda cmos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda  Teresa Sanz Pascual <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 18\/10\/2004<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pedro Martinez Martinez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: salvador Bracho del pino <\/li>\n<li>eduardo Peralias macias (vocal)<\/li>\n<li>nuria Barniol beumala (vocal)<\/li>\n<li>justo Sabadell melado (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Teresa Sanz Pascual En esta memoria se realiza una breve introducci\u00f3n a la situaci\u00f3n actual de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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