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OPA657光电转换产生自激

Other Parts Discussed in Thread: OPA657

我按照OPA657的Datasheet仿真了其光电转换原理图,其中跨阻为20K,电容为1pF,电流信号幅度为10uA,频率为2.5M Hz 。仿真的瞬时特性和交流传输特性如图所示:

但是,我按照这个参数在实验板焊接电路,发现输出信号为10多M Hz自激信号,PIN也不起作用。我不知道问题出在哪里了,求各位解答,谢谢。