主权项 |
1. A method of operating a circular vertical Hall (CVH) sensing element having a plurality of vertical Hall element contacts disposed in a circle over a common implant region in a substrate, the method comprising:
selecting a plurality of groups of vertical Hall element contacts from among the plurality of vertical Hall element contacts, each group representative of a respective one of a plurality of vertical Hall elements, wherein the selecting comprises selecting a first group of vertical Hall element contacts representative of a first vertical Hall element, and selecting a second group of vertical Hall element contacts representative of a second vertical Hall element; and driving at the same time the first and the second vertical Hall elements to provide at the same time a first vertical Hall element output signal between two of the vertical Hall element contacts of the first group and a second vertical Hall element output signal between two of the vertical Hall element contacts of the second group, wherein the selecting further comprises:
selecting a third group of vertical Hall element contacts representative of a third vertical Hall element from among the plurality of vertical Hall element contacts, and wherein the driving further comprises:driving at the same time the third vertical Hall element to provide at the same time a third vertical Hall element output signal between two of the vertical Hall element contacts of the third group. |