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芯片型号求助

Other Parts Discussed in Thread: CD4052B, OPA2322, TLV2322

各位TI大哥好,小弟想问一下一个芯片的信号,芯片上写了23221,用来给AD提供参考电压,不知道叫什么,知道的话告诉一下小弟,谢谢了!