The 8-SOIC footprint (3.90 mm width) is a standard layout — no special pad geometry required beyond the usual decoupling at each supply pin.
Input bias and offset — the DC precision story
For a general-purpose amplifier, that bias is low enough to avoid errors from source impedance in the tens of kΩ range — useful for photodiode transimpedance or high-impedance sensor buffers where a bipolar-input amp would add microamp-level error.