Patent ID: 7825838
Filing Date: 2010-11-02
Classification: H03M

Abstract:
1. A method for removing component mismatch errors for a system parameter being set by a ratio of two or more physical, electrical components (“components”) of the same kind on an integrated circuit, the method comprising: providing an array of component units on the integrated circuit, each component unit being designed to have the same component value; determining the actual component values of each component unit in the array; selecting component units based on the actual component values to form pairs of component units (“component unit pairs”), the pairs having approximately the same total component values; ordering the component unit pairs into an order of component unit pairs; assigning alternate component unit pairs to be associated with each of the two or more components; and rotating at a first frequency the assignment of the component unit pairs associated with each of the two or more components, wherein at each rotation, the component unit pairs to be associated with each component are shifted along the order of the component unit pairs so that each component unit pair is associated with a different one of the two or more physical, electrical components in turn.