Patent ID: 6753800
Filing Date: 2004-06-22
Classification: H03M

Abstract:
A method for selecting capacitors in a charge redistribution digital-to-analog converter, wherein m capacitors are arranged in the charge redistribution digital-to-analog converter, the m capacitors comprising an initial capacitor, an address of which is an initial address, and a blank capacitor, an address of which is a blank address, the method comprising:inputting a signal to the charge redistribution digital-to-analog converter to identify n output units of the charge redistribution digital-to-analog converter; continuously selecting the initial capacitor at the initial address and the following nâˆ’2 capacitors at the following nâˆ’2 addresses and if the following nâˆ’2 capacitors comprise the blank capacitor, selecting the next capacitor instead of the blank capacitor and identifying a new blank capacitor; changing the initial address to the address of the capacitor next to the last selected capacitor; and outputting the nâˆ’1 selected capacitors for the output units of the charge redistribution digital-to-analog converter; wherein n and m are positive integers and m>n>=1.