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。
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Hi:
用TI 推荐的TPS7A49/TPS7A30 产生±2.5V 的运放供电电压,请问这样是否OK ?