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INA128输出偏置电压如何调节

Other Parts Discussed in Thread: INA128, OPA227, PGA202

最近在做锁相放大器,需要测量的最小电压1微伏交流信号,用INA128做前置放大10倍测量发现有0.1毫伏的输出偏置,后级放大造成很大误差,请大神指导如何减小输出偏置