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ADS1158模拟前端信号调理问题

Other Parts Discussed in Thread: ADS1158

第一次使用ADC芯片,以前都是直接用DSP的AD,参照datasheet,设计了一个信号调理电路,如图

输入信号的最大值为 2.5V、最小值为 -2.5V、交流50Hz,采样频率为10K,各位看看有什么问题没有?

非常感谢。