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关于多运放集成电路中未用运放的处理问题?

Other Parts Discussed in Thread: LM393

您好,我用LM393比较器,电路图见附件,芯片内部集成了两个比较器,那么没有用到的比较器怎么处理,引脚都悬空吗?

别外,LM393输出引脚要接上拉电阻吗,要的话一般接多大的?