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请问LMV772到底是双电源还是单电源啊？手册前面写的太模糊了。求指教
你好，其实只要保证运放VCC+~VCC-之间的压降足够，运放就能正常的工作，需要注意下输入输出的电压范围。
LMV772/774 输入并非是rail to rail 输入的，所输入端的共模电压范围离电源轨有段距离：
（V+ = 2.7V, V − = 0V）
