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您好,
对供电电压和偏置电压稳定性的具体要求取决于您设计需求对输出精度的要求。因为供电电压的稳定性和输入共模电压的稳定性影响运放的工作精度,具体评估参数分别是PSRR(电源抑制比)和CMRR(共模电压抑制比)。更详细信息见下面链接:
可以用电阻分压的方式提供偏置电压。