Method for search and matching of capacitors for a digital...

Details Method for search and matching of capacitors for a digital... Method for search and matching of capacitors for a digital...

2007-04-03

2007-04-03

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S118000, C341S120000

Reexamination Certificate

active

11311508

ABSTRACT:
The method is described for selecting capacitors from a capacitor array for each bit of a SAR ADC. The process involves selecting a group of capacitors from the capacitor array and determining a weight of the selected group of capacitors. A determination is made if the weights of the selected group of capacitors are substantially equal to their desired values. If the weights are substantially equal to their desired values, the selected group of capacitors is associated with each bit of the SAR ADC. If the weights are not substantially equal to their desired values, a next group of capacitors from the capacitor array is selected for the bits. This process of selecting a group of capacitors and determining their weights is repeated until determined weight for a group of capacitors equals or is closest to the desired values.

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patent: 2005/0116845 (2005-06-01), Lin

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