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. 02, 2007
Filed:
Dec. 03, 2004
Derrick Chunkai Wei, Austin, TX (US);
Derrick Chunkai Wei, Austin, TX (US);
Silicon Laboratories, Inc., Austin, TX (US);
Abstract
A switched capacitor input circuit () includes an input buffer (), a switched capacitor sampler circuit (), and an integrator (). The input buffer () has an input terminal for receiving an input voltage, and an output terminal. The switched capacitor sampler circuit () has an input terminal coupled to the output terminal of the input buffer (), and an output terminal. The switched capacitor sampler circuit () includes a capacitor () and stores a charge proportional a voltage at the output terminal of the input buffer () in the capacitor () during a sample period, and transfers the charge from the capacitor () to the output terminal thereof during a transfer period subsequent to the sample period in a plurality of charge portions corresponding to a like plurality of phases of the transfer period. The integrator () has an input terminal coupled to the output terminal of the switched capacitor sampler circuit, and an output terminal for providing an output voltage signal.