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OPA333: 问题描述如下:

Part Number: OPA333

Dears

型号:OPA333AIDBVR,

1。输入信号3引脚给0V,如下跟随电路1.输出300mV 的偏置,请问是什么原因,谢谢!

2.原理图如下所示,谢谢!