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OPA374使用求助 help help help

我采用的是TINA 提供的参考设计,因为我对输出信号的要求就是抬升1v,信号放大到0.5~2.5v,

TINA 仿真的效果很好,可是在自己搭了实际电路上效果却没那么好:

1、用函数发生器作信号源,放大倍数与理论相差蛮大,只有两倍(我搭的是3倍)

2、用自制的传感器作信号源(直接用示波器显示输出在幅值0.8~1.2),输出很小只有两三百毫伏

求解释,求指教