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OPA690加法器电路,不能实现功能

Other Parts Discussed in Thread: OPA690

我用OPA690设计的一个加法器电路,仿真可以通过,但实际做出来却不能实现功能,而且芯片发烫,想知道是这个电路的有没有问题。我用频率1Khz,500mV的信号做的输入。