以输入箝位放大器取代输出箝位运算放大器

Publisher:Enchanted2021Latest update time:2013-11-06 Keywords:箝位放大器  运算放大器 Reading articles on mobile phones Scan QR code
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在超声及成像等各类系统中,模拟信号的电压有时可能突然达到极限值。而诸如ADC驱动器之类的多种下游电路可以对模拟输入信号电平进行限制,以维持其性能。在过驱条件下,这类器件可能过度吸取电流,也可能被驱动至饱和状态,从而延长恢复时间。在这类系统中,可以利用多种箝位放大器来对输出端的信号偏移进行限制,以保护下游器件。目前,多数箝位放大器都依赖于一种称为输出箝位放大器(OCA)的输出箝位架构。一种被称为输入箝位放大器(ICA)的新型架构可提供更高的箝位精度和更低的失真。
Keywords:箝位放大器  运算放大器 Reference address:以输入箝位放大器取代输出箝位运算放大器

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