手上没有更宽的带宽的运放了,用OPA690做同向2倍放大时,信号为10M,可测出来的始终是50多M的噪声,不知道是什么问题。请大神指点一下吧。 我还是想要问一下,OPA690可以将100M的信号进行同向放大吗??
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