我用OPA657,搭了数据手册中提供的放大十倍的测试电路,结果输出一直是7V多什么情况 , 求指教!!!
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您好,
如果是同相+10V/V放大注意文中提到的HIGH BANDWIDTH 275MHz (G = +10)指的是-3dB处的带宽,也就是说实际在这个带宽中使用是会有衰减的。