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, 2002
Filed:
Apr. 19, 2001
Sasikumar Cherubal, Atlanta, GA (US);
Abhijit Chatterjee, Marietta, GA (US);
Georgia Tech Research Corp., Atlanta, GA (US);
Abstract
A method and system for making optimal estimates of linearity metrics of analog-to-digital converters. A model building phase and a production test strategy are employed. During the model-building phase, a linear model an analog-to-digital converter is constructed from a set of accurately measured transition code voltages for a set of training analog-to-digital converters. During a production test of an individual analog-to-digital converter, a ramp test signal is applied to the individual analog-to-digital converter, a histogram of codes is produced, and the transition code voltages for the individual analog-to-digital converter are estimated from the resulting histogram. Linearity characteristics of the individual analog-to-digital converter may then be computed.