最近,在做一个项目。用到了LMH6552,作用:将单端输入信号转为差分,驱动ADC芯片。请问,系统上电后,对输入的交流信号测试时,会有直流偏置电平出现(大约100mV左右),理论上不应该有直流电平?望回复,谢谢!原理图如下:
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最近,在做一个项目。用到了LMH6552,作用:将单端输入信号转为差分,驱动ADC芯片。请问,系统上电后,对输入的交流信号测试时,会有直流偏置电平出现(大约100mV左右),理论上不应该有直流电平?望回复,谢谢!原理图如下: