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INA103输入阻抗问题

Other Parts Discussed in Thread: INA103, INA111

我想将INA103作为一个电磁传感器的前置放大器使用。我的感应线圈的参数为1.7KΩ,70mH。为了实现低噪声放大1000倍,输入端需要进行阻抗变换吗?INA103的输入阻抗是多少呀。