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CN205195662U 共模反馈电路和信号处理电路 有权 转让

共模反馈电路和信号处理电路
摘要：
本公开涉及共模反馈电路和信号处理电路，其中共模反馈电路包括：跨导输入级，具有差分输入端子；频率补偿增益级，具有差分输出端子，所述增益级级联到所述跨导输入级；共模反馈回路，所述共模反馈回路包括比较器，所述比较器用于通过将指示在所述差分输出端子处感测的共模电压电平的共模感测信号与参考进行比较来产生用于所述跨导输入级的反馈误差信号；其中所述共模反馈回路包括转换器，所述转换器用于将在所述差分输出端子处感测的所述共模电压电平转换成馈送到所述比较器的电流信号。
摘要（英）：

The utility model relates to common mode feedback circuit and processing circuit, wherein common mode feedback circuit includes: the mutual conductance input stage has differential input end, the frequency compensation gain stage has difference output terminal, the gain stage cascade to the mutual conductance input stage, common mode feedback loop, common mode feedback loop includes the comparator, the comparator is used for through instructing the common mode sensing signal and the reference of the common mode voltage level of difference output terminal department sensing carry on relatively coming the production to be used for the feedback error signal of mutual conductance input stage, wherein common mode feedback loop includes the converter, the converter be used for with difference output terminal locates the sensing common mode voltage level conversion becomes to feed the current signal of comparator.

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