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:
Apr. 04, 2023
Filed:
Oct. 22, 2021
Radiawave Technologies Co., Ltd., Shenzhen, CN;
Xiaofeng Guo, Shenzhen, CN;
Erkan Alpman, Portland, OR (US);
Jon Sweat Duster, Beaverton, OR (US);
Yulin Tan, Shenzhen, CN;
Haigang Feng, Shenzhen, CN;
Ning Zhang, Shenzhen, CN;
Radiawave Technologies Co., Ltd., Shenzhen, CN;
Abstract
Disclosed are a pre-drive module of an analog-to-digital converter and an analog-to-digital conversion device. The pre-drive module includes a sampling capacitor; a controller configured to output a reset control signal, a pre-sampling control signal, and a sampling control signal according to a preset timing sequence; a reset module configured to reset the sampling capacitor upon receiving the reset control signal; a first auxiliary drive circuit configured to amplify an input analog signal and output to the sampling capacitor for sampling upon receiving the sample control signal; and a second auxiliary drive circuit. The controller is configured to output the pre-sampling control signal before outputting the sampling control signal, control the second auxiliary drive circuit to amplify the input analog signal, and output to the sampling capacitor for pre-sampling, and when a charging voltage of the sampling capacitor during pre-sampling reaches a preset voltage value, output the sampling control signal.