D由运算放大器A1和A2的关系可知,电容的总闭环增益为:

tikufree2019-12-17  18

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答案D

解析由运算放大器A1和A2的关系可知,电容的总闭环增益为:[img]/upload/tiku/37/5850259_1.png[/img][img]/upload/tiku/37/5850259_1_1.png[/img]
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