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VCA821发热严重!



您好   我按如图仿真加+-5v电压  没加offset output电路调理时  单级输出偏置4v多!!后来同相端下拉50欧姆电阻还是有1v多偏离。最关键是芯片烫手严重,直到把电压减到+-3.3v才好转!请问偏离和发烫是什么原因