arduino pin over current circuit

[Derun93]

Hi everyone,
I recently made an arduino sensor shield. However, I realized (before testing) that one of the current sensors can give 90mA output current. Then I checked out the arduino I/O pins and the max current pins can stand is 40mA. So what can I do? I want to decrease this current which flows through the analog pins but also the measurements should not be affected from this additional circuit.
Thank you.

 

[KlausST]

Hi,

Not very descriptive.
What sensor?
What supply voltages?
What port setup?
Input, output, bidir, analog?
Show your curcuit.

Usually an output CAN drive current, but IF it really does depends on the load resistance.
The resistance of a properly configured input (digital or analog) is very high, therefore the current usually is very low.

Klaus