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INA210 加REF电压后输出有正弦波问题

Other Parts Discussed in Thread: INA210

我把1脚接一个1.25V的电压后,会在Vout产生一个在1.25V上波动的正弦波,而且幅度不小。把REF接地就没有。

图中INA210 1脚接的是Vref