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:
May. 24, 2011
Filed:
May. 07, 2010
Zwei-mei Lee, Taoyuan County, TW;
Kang-wei Hsueh, Hsinchu, TW;
Ya-lun Yang, Hsinchu County, TW;
Hung-sung LI, Hsinchu County, TW;
Pao-cheng Chiu, Taipei County, TW;
Zwei-Mei Lee, Taoyuan County, TW;
Kang-Wei Hsueh, Hsinchu, TW;
Ya-Lun Yang, Hsinchu County, TW;
Hung-Sung Li, Hsinchu County, TW;
Pao-Cheng Chiu, Taipei County, TW;
Mediatek Inc., Hsin-Chu, TW;
Abstract
A track and hold amplifier is provided. The track and hold amplifier includes an input node receiving an analog signal, a buffer coupled between a first node and an output node, a first switch coupled between the input node and the first node, a plurality of switching circuits and a voltage generating unit. Each of the switching circuits includes a capacitor coupled between the first node and a second node. The voltage generating unit selectively provides a common signal or a reference signal to the capacitors of the switching circuits, wherein the reference signal is independent from the analog signal.