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LMH6401: 请问采用3.75V和-1.25V供电的时候,要求共模输入电压在什么范围呢

Part Number: LMH6401


尊敬的TI工程师您好,请问DC耦合的时候,输入端的差分信号的共模电压能否为1.5V(采用3.75V和-1.25V供电),万分感谢!

  • 您好,

     LMH6401输入共模电压范围是(VS–) + 1.5 ~ (VS+) – 1.5 ,因此共模电压为1.5V时是可以的,但是为了获得最佳的线性和噪声性能, TI 建议将输入共模电压设置为尽可能接近供电电源中间电压值。