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INA216: current sense product suggestion

FRANK1
Expert 8205 points
Part Number: INA216
Other Parts Discussed in Thread: INA186, INA190

Hi sir,

I wanna select a current sense,

My circuit current is wide range from 10mA to 2A.

voltage is 1.1V 1.5V 2.5V and so on.

is INA216 meet my requirements?

If not, can you suggest a recommended product?

Thank you for your valuable suggestion.

Regards,

  • 0
    TI__Mastermind 20395 points

    Frank,

    Can you share what you mean by "voltage is 1.1V 1.5V 2.5V and so on." Are you saying that your maximum voltage that you can supply the amplifier with is a maximum 2.5V?

    Based on the lower range of measurement in the mA range, as well as potentially the limited voltages above, I would recommend looking at the INA186 or INA190. These devices are capable of operating down to a 1.7V supply range, and have input bias currents in the picoamp range, which will help reduce error in the lower decades of your measurement.