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放大器失真

Other Parts Discussed in Thread: OPA2277, OPA2188, OPA2192, TINA-TI

放大器OPA2277输入一个正弦信号,放大7.2倍以后,信号变形了。请教是什么原因??

从pin2来看,波形漂移了,低于漂移量的部分为高电平。

当输入(pin3)位0时,pin2和pin1(输出)都为高电平