TI专家您好,我要做一个放大微电流信号的跨阻放大器,电流信号是从InGaAs PIN module输出的,PIN管电容0.35pF(典型值),最小放大的光电流为10nA左右,需要放大至少120dB,带宽为350kHz,请问有TI有相关的器件推荐吗?谢谢
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请参考OPA128,OPA129 ,的datasheet上有参考电路。并特别注意,选择超低Bais电流的运放。 以及下面的链接