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INA381: About output capacitance value.

Guru 10385 points
Part Number: INA381
Other Parts Discussed in Thread: INA180

Hi team.

I'd like to know about output capacitance and Resistance value.

Is there a limit to the output Capacitance and Resistance?

I think that there is no problem if it does not oscillate, please let me know if you know the range in advance.

Sincerely.

Kengo.

  • Hi Kengo,

    For the INA381 amplifier output impedance characteristics, please refer to below graph (copy from INA180).

    If you’re wondering about the capacitive drive ability of INA381, this is specified in the datasheet:

    And yes it is good if no oscillation can be observed in your circuit. However if you suspect the cap load is approaching max recommended, it is always best practice to do a more thorough checkout considering operating condition, temperature, device variation and so on.

    Regards, Guang