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关于光电转换

Other Parts Discussed in Thread: THS4509, OPA2380, OPA657

由于之前做模拟电路经验甚少,所以最近在做光电转换的时候遇到一些问题想请教一下

想检测频率为10M的脉冲光信号,光电二极管的暗电流大概10nA,检测的光电流在1uA左右,前级准备用跨阻型放大,中间级想用差分进一步放大

到3V以上,请问中间级的差分运放用什么型号好?求推荐。

先谢谢了!~~