Connect the input terminals to the sensing resistor using a Kelvin or 4-wire connection. This connection technique ensures that only the current-sensing resistor impedance is detected between the input terminals. Poor routing of the current-sensing resistor commonly results in additional resistance present between the input terminals. Given the very low ohmic value of the current resistor, any additional high-current carrying impedance can cause significant measurement errors.
The power-supply bypass capacitor should be placed as closely as possible to the supply and ground terminals. The recommended value of this bypass capacitor is 0.1 μF. Additional decoupling capacitance can be added to compensate for noisy or high-impedance power supplies.