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OPA227: OPA227输入端输入保护电路里的背靠背二极管,在正常使用的时候,会是导通的吗?

Part Number: OPA227

Dear sir:

如下图所示,当我正常使用OPA227的时候,如input输入一个正弦波信号(Vp=5V),那我想问的是,这个时候内部这个保护二极管岂不是导通了?