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INA193 电流检测问题

Other Parts Discussed in Thread: INA193

这是我的 INA193 电流检测电路

然后在 VM 端带一个 30mA 的负载时, OUT 端的波形如下:

请问是哪里有问题么?正常的话OUT的输出波形应该是恒定电压吧~