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OPA857: 超低噪声跨阻放大器选型推荐

Part Number: OPA857

现需要为一个pd范围约在160-280uA的光电传感芯片选择一超低噪声跨阻放大器(最好增益可调,噪声nA及以下),OPA857的可测电流范围过小,寻求合适的选型推荐。如果可以,还希望推荐几个同样低噪声的后端ADC芯片,谢谢!