I am using three WSK12161L000FEB paralleled together on a four layer PCB for a three phase motor controller (9 shunts total in design, 3 for each phase)
From my understanding, a kelvin connection to just one of the three WSK12161L000FEB shunt's measurement leads is the best practice. Is this accurate, or should I make a kelvin connection to all three shunt measurement leads? It feels like a waste of a high quality shunt to just use one shunt for measurement when they all have measurement leads. My thought is it would be more accurate to use all leads.
I am using an INA240-Q1. one of the features it offers is PWM rejection. Is it best practice to place this amp next to the shunts, or place the amp near the microcontroller reading the signal? Placement next to shunts is also near the MOSFETs, a noisy spot, but sending the 20x amplified signal past the MOSFETs to controller (I think this is best). Placement near microcontroller would make the two shunt leads extremely long, which will likely pick up more noise going past MOSFETs considering this signal is not amplified. In the datasheet it does not mention which practice is best but shows the INA240 next to the shunts.
Edit: added reference PCB, shunts are far from amps. Note this device was destroyed from water damage, not poor PCB layout