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:
Aug. 13, 2013
Filed:
Nov. 30, 2010
Sachin D. Dasnurkar, San Diego, CA (US);
Sachin D. Dasnurkar, San Diego, CA (US);
QUALCOMM, Incorporated, San Diego, CA (US);
Abstract
An integrated circuit configured to perform hybrid built in self test (BiST) of analog-to-digital converters (ADCs) is described. The integrated circuit includes an ADC. The integrated circuit also includes a BiST controller that controls the hybrid BiST. The integrated circuit further includes a ramp generator that provides a voltage ramp to the ADC. The integrated circuit also includes a first multiplexer that switches an input for the ADC between the voltage ramp and a voltage reference signal. The integrated circuit further includes feedback circuitry for the ramp generator that maintains a constant ramp slope for the ramp generator. The integrated circuit also includes an interval counter that provides a timing reference.