• AD8218 offset

    Q 

    If the common mode voltage range is 20-40VDC, will there be any changes in
    offset errors at these ranges since device is specified at common mode voltage
    of 4? If there will be changes pl advice by how much and in what parameters?

     

    A 

    If the common…

  • AD8218: FAQ

    FAQ

  • AD8218 If "ENB" is tied to ground

    Q 

    If “ENB” is tied to ground, does the input need to larger than 5mV if we want
    to gurantee the spec on page 3 in the datasheet?  In figure 32, seems the input
    can be 0mV, but in figure 7, the total output error is larger if the input is
    …

  • AD8218 errors due to input offset voltage and ground rail saturation voltage

    Q 

    Can you please confirm that errors due to input offset voltage and ground rail
    saturation voltage, will be eliminated if we ground ENB pin according to page
    11 in the datasheet?  How the offset is overcome?

     

    A 

    Enabling the offset pin means…

  • Multisim simulation result of current sense amplifier AD8218 is incorrect

    The multiplication simulation result of the AD8218 is not 20 times, which is inconsistent with the datasheet description. The design cannot be used.

  • RE: AD8218 Application

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    …

  • RE: Improve AD8218 accuracy

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  • 专用电流检测放大器AD8218的multisim仿真结果不正确

    参考电压3.27V，单数依据公式Vout=20*Vin+Vref，之后，发现输入倍数不是手册的20倍，不确定设计是否有问题？

  • AD8218 5V供电无法工作

    我用AD8218将 4-20ma电流信号转换为电压信号，串联的转换电阻阻值为7.5欧姆。AD8218第二引脚供电电压为5v。在使用的过程发现AD8218没有工作，输出引脚电压为0V。
    正常情况下没有4-20ma电流时，输出引脚的电压是80mV。数据手册上写到可以利用第二脚供电，请问这是为什么？

    取消 4-20ma电流输入，将第一引脚和第二引脚短接，发现输出引脚上有80ma的电流，难道AD8218不能通过第二硬件进行供电？

  • RE: AD8218 wrong output value

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    …