Los circuitos de muestreo y retención se utilizan en conversores analógicos para digitales y en algunas otras aplicaciones que implican la retención de la amplitud de una señal durante un determinado tiempo. El mando del muestreo es hecho por un transistor de efecto de campo en la entrada correspondiente. El amplificador operacional garantiza una alta impedancia de entrada para el circuito, debiendo el mismo ser alimentado por una fuente simétrica. Los transistores de efecto de campo pueden ser de tipos comunes de unión tales como los BF245. Observe la figura.

 


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18.837MBMemory Usage40.14msRequest Duration
Joomla! Version5.2.3
PHP Version8.3.20
Identityguest
Response200
Templatecassiopeia
Database
Server
mysql
Version
10.5.22-MariaDB
Collation
latin1_swedish_ci
Conn Collation
utf8mb4_general_ci
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$_POST
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