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AMC1301-Q1: Input Bias Current

SR
Prodigy 140 points
Part Number: AMC1301-Q1
Other Parts Discussed in Thread: AMC1301, , AMC1311-Q1

The latest datasheet of "AMC1301-Q1" released in April 2017, specifies the Input Bias Current to be 60uA. But the latest datasheet of "AMC1301" ( updated in March 2018 ) specifies the Input Bias Current to be 30uA. Please confirm this updated specification is applicable for "AMC1301-Q1" as well.

  • 0
    TI__Mastermind 47625 points

    Hi SR,

    This is applicable to the AMC1301Q-1 as well. It was originally intended to mean both Inputs Bias Current together equals 60uA, but it was confusing. We're in the process of updating the datasheet. 

    As a reminder, this bias current can cause significant offset when performing voltage measurements depending on the size of the shunt resistor. If you're looking at performing a voltage measurement with the AMC1301-Q1, please consider a device with higher input impedance such as the AMC1311-Q1.