最近用宽带THS4275搭了一个简单的同相放大电路,增益G=5,Rf=300;根据数据手册,小信号时带宽为85M,但是实际测试(Vo=100mVpp)带宽只有不到7M,改变增益G=10带宽并没有变化多少;请问这是什么原因,且如何解决?
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