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发明公开
CN101599742A 放大器和偏移调节电路 无效 - 撤回

放大器和偏移调节电路
摘要：
本发明提供了一种放大器和偏移调节电路。放大器包括信号放大部件，其输出通过放大输入信号所获得的输出信号以及输出信号的共模电压VCM；以及共模反馈部件，其根据共模电压VCM和基准电势Vref之间的差来输出信号作为调节信号SREG。来自共模反馈部件的调节信号SREG被反馈到信号放大部件的电流源和共模反馈部件的电流源。
摘要（英）：

The invention provides an amplifier and an offset regulating circuit. An amplifier includes a signal amplification part that outputs an output signal obtained by amplifying an input signal and a common mode voltage VCM of the output signal, and a common mode feedback part that outputs a signal according to a difference between the common mode voltage VCM and a reference potential Vref as a regulation signal SREG. The regulation signal SREG from the common mode feedback part is fed back to a current source of the signal amplification part and a current source of the common mode feedback part.

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