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:
Nov. 05, 1996
Filed:
Mar. 31, 1995
Applicant:
Inventors:
Roger A Levinson, Sunnyvale, CA (US);
Sang T Ngo, Sunnyvale, CA (US);
Assignee:
Exar Corporation, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341162 ; 341172 ;
Abstract
A pipelined analog to digital converter in which data samples ripple down through the pipeline of comparator stages. Each stage of the pipeline includes switch capacitor amplifiers for comparing an analog signal to a first reference voltage, to a second reference voltage, and to an average of the first and second reference voltages. Fan out of circuit components can be eliminated in succeeding stages, and error correction is provided by including overlapping of ranges passed by an earlier stage to a subsequent stage.