Figure 10-1 shows a layout recommendation with the critical placement of the decoupling capacitors (as close as possible to the AMC3302 supply pins) and placement of the other components required by the device. For best performance, place the shunt resistor close to the INP and INN inputs of the AMC3302 and keep the layout of both connections symmetrical.

To avoid errors in the measurement caused by the input bias currents of the AMC3302, connect the high-side ground pin (HGND) to the IIN-side of the shunt resistor. Use a separate trace in the layout to make this connection to maintain equal currents in the IIN and INP traces.