DRV110: DRV110 Sense pin input characteristics for designing suitable low pass filter

Part Number:DRV110

Hi,

I'm interested in understanding the input characteristics of the sense pin, i.e its impedance, or equivalent input in terms of bulk R,C, and L) of the DRV110 .  I am looking to design additional current sense filtering for my application, but would like to base my filter selection on more than empirical cut and try.  Does TI have any specs, or characteristics of the sense pin input that it can share?

thanks!

Steve