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. 11, 2012
Filed:
Aug. 18, 2010
Gianluca Farabegoli, Cesena, IT;
Mauro Giacomini, Bergamo, IT;
Marco Losi, Bollate, IT;
STMicroelectronics S.r.L., Agrate Brianza, IT;
Abstract
An analog-to-digital converter has a self-test capability that provides not only an indication of failure or performance degradation but also identifies the failed or degraded component or components. The converter includes a first generator configured to generate a first analog value, a digital-to-analog converter configured to generate a second analog value, a second generator configured to generate a digital value from the comparison of the first analog value with respect to the second analog value, a controller configured to receive a signal indicating a test mode and to generate a configuration signal to the first generator, to receive the digital value and generate a control signal to control the generation of the second analog value, and to generate from the digital value an alarm signal indicating a failure within the analog-to-digital converter or indicating a degradation of the performance of the analog-to-digital converter.