Package and layout — 8-SOIC
The 8-SOIC (3.90 mm width) package carries the primary current through the leadframe — no external sense resistor. Keep the high-current traces short and wide to the package pins; the Hall element is inside the IC, so the magnetic field it sees depends on the PCB copper geometry. The surface-mount footprint matches standard SOIC-8 land patterns; no special pad geometry required.
Supply and temperature range
Operates from 3 V to 5.5 V, drawing a maximum of 6 mA. The ratiometric output scales with the supply voltage, so if the ADC reference is also the sensor supply, the measurement stays ratiometric — no separate reference needed.