The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 11, 2025
Filed:
Mar. 31, 2023
Pixart Imaging Incorporation, Hsinchu, TW;
Boon-Eu Seow, Penang, MY;
Kei-Tee Tiew, Penang, MY;
PIXART IMAGING INCORPORATION, Hsinchu, TW;
Abstract
An SAR ADC includes: at least one sub-ADC, configured to convert a corresponding input signal to a corresponding SAR code; and a tuning control unit, configured to adjust a full-scale voltage (VFS) of each of the sub-ADC to a corresponding predetermined target level in a VFS tuning mode. The tuning control unit generates a tuning code to control an adjusting capacitor array coupled to the sub-ADC for tuning the VFS. The tuning control unit controls the sub-ADC to convert plural reference voltages in the VFS tuning mode and extrapolating the conversion result to determine a corresponding calibrating VFS. The tuning control unit determines whether the calibrating VFS meeting the target VFS and loops the adjusting process in a linear search method or in a SAR method.