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如何用OPA333搭建一个单电源同相放大电路？虚拟地能用电源地吗？输出的电压是以虚拟地为参考？如果是以虚拟地为参考那与输入电压的倍数关系是怎样的？
亲；可以以电源地为参考，只是失调大些而已。虚拟地时增益算法与通常无异。
如果是以VCC/2作虚拟地，那么输入输出电压均是以VCC/2作参考地来计算增益？
是的！没错！
谢谢
