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:
Apr. 30, 2019
Filed:
Jun. 20, 2017
Texas Instruments Incorporated, Dallas, TX (US);
Krishnaswamy Nagaraj, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
In some embodiments, an analog-to-digital converter (ADC) comprises a loop filter configured to produce an error signal based on a difference between an analog input signal and a feedback signal. The ADC also comprises a main comparator set comprising one or more main comparators, the main comparator set configured to digitize the error signal and further configured to drive a main digital-to-analog converter (DAC). The ADC further comprises an auxiliary comparator set comprising a plurality of auxiliary comparators, the auxiliary comparator set configured to digitize the error signal when the ADC is in a runaway state and further configured to drive an auxiliary DAC to bring the error signal into a predetermined range.