我用LPV521做跟随器,2.5V供电,输入直流电压信号,输出信号上有20mV的震荡,频率为3k左右。请问该如何解决?
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你好
建议从下面两步开始查找:
1.先确定电源的开关噪声频率是多少?看下有没有关联
2. 然后调整运放的阻容参数,方便的话把电路图发上来看一下?