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大家好,麻烦大家帮我解答一下。这两个运算放大器级联在中间红色框中不做阻抗匹配和滤波实际电路会不会出现问题?谢谢大家了
2个都是仪表运放,不做阻抗是可以的。
滤波与否就看你的要求了。
你这电路很奢侈啊,既然前级用了,后级还用PGA是必要的吗?