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LMP7721 运放供电电源,±2.5V

Other Parts Discussed in Thread: LMP7721, TPS7A49, TPS7A30

采用LMP7721 做跨阻运放的时候,正负供电电源正负2.5V 如何产生?2.5V 的LDO 芯片有,但是-2.5v的LDO 没有?

通常是如何设计满足±2.5V 的双电源需求?谢谢。