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. 09, 2014
Filed:
Jun. 28, 2011
Salvador Mir, Saint Hilaire du Touvet, FR;
Haralampos Stratigopoulos, Grenoble, FR;
Matthieu Dubois, Grenoble, FR;
Salvador Mir, Saint Hilaire du Touvet, FR;
Haralampos Stratigopoulos, Grenoble, FR;
Matthieu Dubois, Grenoble, FR;
STMicroelectronics International NV, Genève, CH;
Abstract
The invention concerns a sigma-delta switched capacitor analog to digital converter (ADC) having: an input line for receiving a signal to be converted; first, second and third inputs for respectively receiving first, second and third test voltages; and switching circuitry adapted to apply, during a test mode of the sigma-delta ADC, a ternary test signal to the input line by periodically selecting, based on a digital test control signal, one of the first, second or third test voltages to be applied to the input line.