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AMC1301: unity gain isolated current sense

Masaharu Takahashi
Expert 4170 points
Part Number: AMC1301

hi, team.

could i ask you your suggestion.

customer wants to use the isolated current sense but its gain is 1.

customer doesn't make amp "gain" for output. so that they want to use isolated unity gain amp.

do you know which part or how to sort it out ?

  • 0
    TI__Guru**** 181021 points
    Hi Takahashi-san,

    The analog input to the AMC1301 is only +/-250mV. The gain is fixed at 8.2V/V, so unity gain with this device is not possible unless you follow the AMC1301 with an attenuation stage. Current sensing with unity gain is rather unusual, so please feel free to send me direct details on what it is you are trying to do.