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INA4235: Unused IN Pins

Ethan Long
Prodigy 10 points
Part Number: INA4235

Tool/software:

Hello,

I am using a few INA4235's in my design but one of them will only be using only two of the four channels. I do not want to leave these floating.

What would be a safe configuration for these in used IN+ and IN- pins? Can they be grounded if unused?

Thanks!

  • +1
    TI__Expert 7160 points

    Hi Ethan,

    Best practice would be to tie the inputs together and connect them to GND via a resistor. The resistor is optional, you can tie the inputs to GND without a resistor as well. Generally, 1k resistor should suffice. 

    Best,
    Mallika Senthil