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TPS71710做参考电压有些问题,请专家指教(有图)

Other Parts Discussed in Thread: OPA2350, REF3312

tps71710输出的1V电压作为基准电压同时加到了运放的正反向端,硬件调试时发现TPS71710的输出受图中Midsignal影响很大,尤其在输入信号频率很低的时候,这时基准电压几乎被影响到1.5V。想请专家想想办法,最好可以详细的讲解让我明白在这类应用中应该考虑哪些问题,注意选用器件的哪些指标?多谢多谢