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LMP7721: TIA的输出VOUT计算

Part Number: LMP7721

您好,我在参考snou004 LMP7721 Multi-Function Evaluation Board Users' Guide这个参考设计时,Transimpedance Configuration这个配置下,输出电压的公式为Vout = -I / RF (第7页)

               1.这个公式怎么理解,TIA的输出计算不应该是VOUT=-I*RF嘛?

               2.如果按照公式Vout = -I / RF,那么反馈电阻RF变大,VOUT输出不就变小了嘛?

祝好!