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用INA128做了一个设计跟随器(放大倍数1),输入加载一个正弦波信号,输出正弦波会有很多小毛刺。
输入输出波形如图所示:黄色为输入波形,粉色为输出波形。
我看电路中INA128的地是ADC—GND,是和ADC共地的是吗? 是不是地干扰引入的噪音?