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:
Jan. 17, 2023
Filed:
Jan. 07, 2020
No.24 Research Institute of China Electronics Technology Group Corporation, Chongqing, CN;
Chongqing Gigachip Technology Co. Ltd., Chongqing, CN;
Daiguo Xu, Chongqing, CN;
Hequan Jiang, Chongqing, CN;
Ruzhang Li, Chongqing, CN;
Jianan Wang, Chongqing, CN;
Guangbing Chen, Chongqing, CN;
Yuxin Wang, Chongqing, CN;
Dongbing Fu, Chongqing, CN;
Liang Li, Chongqing, CN;
Yan Wang, Chongqing, CN;
NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION, Chongqing, CN;
CHONGQING GIGACHIP TECHNOLOGY CO. LTD., Chongqing, CN;
Abstract
SAR ADC and sampling method based on single-channel TIS. The SAR ADC comprises: a capacitor array comprising a weight capacitor and a compensation capacitor, a first switch array, a second switch array, a channel switch group and a sampling switch; when in a sampling state: a lower plate of the weight capacitor is connected to an input voltage by means of the first switch array, and an upper plate of the capacitor array is connected to a common mode voltage by the sampling switch and the channel switch group; when in a successive approximation state: the lower plate of the weight capacitor is connected to a reference voltage by the second switch array. Input signals are sampled by using a unified to sampling switch, which solves the problem in the traditional technology that sampling moments are mismatched due to different sampling signals in each time-interleaved channel.