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:
Sep. 27, 2011
Filed:
Jul. 29, 2010
Applicant:
Ammisetti V. Prasad, Austin, TX (US);
Inventor:
Ammisetti V. Prasad, Austin, TX (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switched capacitor circuit utilizes a pair of serially connected differential amplifiers that have plus inputs, minus inputs, plus outputs, and minus outputs. Feedback to the plus/minus inputs is in a first configuration relative to the output of the pair of differential amplifiers in a sampling mode and a second configuration in a hold mode. Similarly, the plus/minus inputs relative to the plus/minus outputs of the serially connected differential amplifiers is reversed between the sampling and hold modes.