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ina333双电源供电

Other Parts Discussed in Thread: INA333

还是想问一下,关于小信号放大 ,大家都在讨论在输入端加偏置电压,可是怎样加偏置才能不影响前级的电压呢(我前级电压也需要用AD读取)。。已经打算用双电源供电,可加了双电源输出电压还会在Vref上下变化吗。。。不会用仿真,但求解决方案