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你好 我要将0~3v的方波信号转换为-1~0的方波信号，并且要求运算放大器的功耗尽量小，最好可以在几十uA，但是我好像找不到这样的运放芯片，功耗小的运放好像输入的信号电压值都特别小
低功耗放大器, 也是 TI 的一个强势产品, 可以去这里看看
http://www.ti.com.cn/lsds/ti_zh/amplifiers-linear/precision-amplifier-products.page#p1max=0.0004;0.5
LPV511不错
Supply Current 880 nA
Wide Supply Voltage Range 2.7V to 12V
