Other Parts Discussed in Thread: AMC1300, AMC1302
I am designing a +-50A current monitoring board intended for a similar application as the TIDA-00366 design. The shunt resistor i am using is the WSLP2726, which is a 4-terminal resistor with a power rating of 7W and has a value of 1mOhm. The voltage drop across this resistor will be fed to an AMC1300B isolation amplifier. Now my issue is with the pcb trace thickness for such high current. I used the digikey trace with calculator as seen on the image below and even with 4oz of copper thickness, the required trace with is still high. How can I reduce this required trace width as you have done in the TIDA-00366 design?