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LMP8603-Q1 Total Gain Error and Input Offset Voltage

Toshio Ushikubo
Mastermind 9620 points

Hello,

 

Please answer question about Total Gain Error and Input Offset Voltage.

 

Total Gain Error(9.95V min/ 10.5V max) and Input Offset Voltage(+-1mV max) are specified under V S = 5V, −22V ≤ V CM ≤ 60V and Sense Voltage(+IN - -IN) is not specified.

 

Please advise Sense Voltage range that satisfy min and max specification of Total Gain Error and Input Offset Voltage.

 

Best Regards.

  • 0
    TI__Mastermind 49876 points

    Hello Toshio,

    Are you asking about the total system specifications? Or the preamplifier?

    The "9.95V min / 10.5V max" gain spec is for the x10 Output Buffer.

    The output buffer input (A2, pin 4) is Rail-to-Rail, so it's common mode range is from 0V to Vs. The buffer input does not have the -22 to 60V CMR range!

    Regards,