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想用THS4531做电压取样, 差分输入差分输出, 输入400V最大值, 输出0.9V最大值,
分压, 滤波, C46~49串耦合电容滤直流分量,
用TINA模拟时，先以输入0.9模拟，输出得到的也是0.9,
但输入400加分压电路模拟, 输出却不是我要的值, 请问这电路上有什么问题吗？
亲；你是拿啥测的？咋测的？
