AFE Filters and balancing network

Regardless of part used sharing the power and measurement wire will always lead to some error for the top and bottom cell.  This is because the wire and connector for the harness have nonzero resistance.  Therefore the current to power the IC will cause a small voltage drop on the wire, and this is measured by the ADC.  In the separate power and measurement wire case there is no drop on any of the measurement wires as the power is provided via a different wire, so this error is not present.

Hi  Mvrablic,

thank you for your kind answer.

I have one more question about your answer.

in case of 15-wire, is it separate power and measurement wire? that is why, it does not have any problem. please confirm it.

And is there any documentation or user guide about it?

This is correct.  13 wire and 15 wire could also be described as shared power/measurement wires and separate power/measurement wires.  The component selection guide you have covers both, but for the best accuracy separate power and measurement wires (15 wire) should be used

apprescite your prompt answer.

I am going to share this with the customer.