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Best practice for a ground path is obviously a well laid out ground plane. However, this is not always practical, and a poorly-laid outground plane can be worse than none.Attention to the paths taken by return currents even in a ground plane is essential. In general, the leads from the driver to its load, the driverto the powersupply,and the driverto whateveris driving it should all be as low in resistance and inductance as possible. Of the three paths, the ground lead from the driver to the logic driving it is most sensitive to resistance or inductance, and ground currentfrom the load are whatis most likely to cause disruption.Thus,these ground paths should be arranged so that they nevershare a land, ordo so foras short a distance as is practical.