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ji hu wu zao sheng shi yong yu cheng xiang ying yong de adc qu dong qi
Author(s): 
Pages: 36-37+39-40
Year: Issue:  1
Journal: Electronic Products China

Keyword:  反馈放大器传感器输出驱动器低噪声差分放大器驱动电路电荷耦合器件像素电平移位滤波器;
Abstract: <正>无论就采样率还是就信噪比而言,CCD(电荷耦合器件)和其他传感器对数字转换器都有很高的要求。传感器输出一般是以地为基准的一系列模拟电平(像素),在像素的边沿之间可能出现瞬态信号。像素数量增加时,捕获图像所需的ADC采样率也随之提高,就大多数大动态范围应用而言,20Msps流水线型ADC是足够的。为确保所采样信号具备最高SNR性能,ADC的驱动电路必须提供低阻抗、快速稳定以免引入宽带噪声以及对传感器呈现高输入阻抗。本文描述一种用于传感器和高性
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