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. 27, 2004
Filed:
Dec. 19, 2002
Jeffrey S. Kueng, New Brighton, MN (US);
Justin J. Kraus, Chaska, MN (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
An integrated circuit input buffer is provided, which includes a differential buffer, first and second average value circuits and a feedback amplifier. The input buffer is selectively operable in a differential operating mode and a single-ended operating mode. The differential amplifier has first and second buffer inputs and first and second buffer outputs. The first and second average value circuits have inputs coupled to the first and second buffer outputs, respectively. The feedback amplifier has first and second differential inputs coupled to outputs of the first and second average value circuits, respectively, and has an amplifier output. The amplifier output is coupled to the second buffer input when the input buffer is in the single-ended operating mode and is decoupled from the second buffer input when the input buffer is in the differential operating mode.