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LMH5401无输出?

Other Parts Discussed in Thread: LMH5401, LMH6401

电路如上图,Voffset_CH1=0V,Switch_EN_CH1=1.8V(信号走直通),VOCM1=0V,信号源输入频率1KHz,幅度100mV的正弦波,在K2的3脚可以测到正弦波,但是LM5401的正负输出均为0(无输出?)。把VOCM1改为1.8V,正负输出都是1.8V。

对比了一下,原理图符号把LMH5401的6脚和5脚画反了,在板子上飞线改回来后,LMH5401还是没有输出。

请教一下,问题出在了哪里?