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:
Dec. 20, 2022
Filed:
Jun. 25, 2021
Nxp Usa, Inc., Austin, TX (US);
Weiwei Xu, Cupertino, CA (US);
Xiaoyue Wang, San Jose, CA (US);
NXP USA, Inc., Austin, TX (US);
Abstract
Embodiments of a differential bootstrapped track-and-hold circuit are disclosed. In an embodiment, the differential bootstrapped track-and-hold circuit includes first and second single-ended bootstrapped track-and-hold circuits. Each single-ended bootstrapped track-and-hold circuit includes a sampling switch connected between an input terminal and an output terminal, a sampling capacitor connected to the output terminal, and a dummy sampling switch connected between the input terminal and a dummy output terminal. The sampling switch and the dummy sampling switch are controlled by a bootstrap driver connected to the input terminal. The dummy output terminal of the first single-ended bootstrapped track-and-hold circuit is connected to the output terminal of the second single-ended bootstrapped track-and-hold circuit and the dummy output terminal of the second single-ended bootstrapped track-and-hold circuit is connected to the output terminal of the first single-ended bootstrapped track-and-hold circuit to provide signals to compensate for charge injection errors at the output terminals.