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带直流偏置的运放输出电压建立问题

Other Parts Discussed in Thread: OPA2197

请教各位大牛一个问题,小弟用OPA2197搭了一个放大电路如图所示,加入了直流偏置,给运放供电后,发现V2的电压很快升到1.25V左右,但V1的电压会缓慢抬升至1.25V左右。两个放大电路结构一致,为什么会有此现象?