INA271: The spec. of the Single-Pole Filter Capacitor

Zhang Liang

Part Number: INA271
Other Parts Discussed in Thread: INA240

Tool/software:

Hi,

Please kindly provide the method of calculation of the INA271 Single-Pole Filter Capacitor spec., we can't search in the datasheet;

We need to know the Capacitance/ Maximum voltage value and so on, thanks.

0 Joe Vanacore 18 hours ago

Hello,

The 3dB cuttoff frequency for this is:

Where R is the internal 96kOhm resistor

I hope this helps,

Joe

0 Zhang Liang 4 hours ago in reply to Joe Vanacore

Expert 2345 points

Hi Joe,

It is very appreciate your help.

Now we have the other problem if INA271 can support the reverse current? If not, need we to choose the bidirectional ampliifer(like INA240)?

And there are any risk if we choose INA271 for the reverse current situation? thanks.

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