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TIA运放限幅电路设计

Other Parts Discussed in Thread: OPA656

由于产品需要,使用opa656对APD进行流转压,但是APD是脉冲信号,我这里需要将这个信号限制到2V左右,如果不做限制,运放会饱和,恢复的时候波形会失真。那么这个限幅电路应该怎么来实现呢? 

我试过在反馈回路上串联3个二极管,效果不好。