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REF2033: REF2033AIDDCR输出基准不稳定问题

Part Number: REF2033

如下图示电路应用,REF2033作为一个基准源,进行模拟采集调理电路基准抬升,在应用过程中输入5V(黄色波形)基本没有跌落动作,1.65V(蓝色波形)出现200uS跌落,不知道这个是什么原因,怎么解决?