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OPA657跨阻放大

Other Parts Discussed in Thread: OPA657, OPA335

TI专家您好,用OPA657设计跨阻放大器,上面是TINA仿真图,仿真完全没有问题,但是实际电路中就会出现400MHz的正弦波,当不连接光电二极管时也存在幅度136mV,频率400MHz的波,这个怎么处理?

另外,我要放大的电流信号频率低于100Hz,对带宽没太大要求的。