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. 20, 2016
Filed:
Sep. 09, 2011
Dongsoo Kim, San Jose, CA (US);
Taehee Cho, Palo Alto, CA (US);
Isao Takayanagi, Tokyo, JP;
Ashirwad Bahukhandi, San Jose, CA (US);
Chiajen Lee, Irvine, CA (US);
Dongsoo Kim, San Jose, CA (US);
Taehee Cho, Palo Alto, CA (US);
Isao Takayanagi, Tokyo, JP;
Ashirwad Bahukhandi, San Jose, CA (US);
Chiajen Lee, Irvine, CA (US);
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
Successive approximation register (SAR) and ramp analog to digital conversion (ADC) methods, systems, and apparatus are disclosed. An analog voltage signal may be converted into a multiple bit digital value by generating bits of the multiple bit digital value by performing a SAR conversion on the analog voltage signal, where the bits corresponding to a SAR voltage level, and generating other bits of the multiple bit digital value by performing one or more ramp conversions on the analog voltage signal, the ramp conversion comparing the analog voltage signal to a ramp of voltage levels based on the SAR voltage level. The SAR and ramp ADC can provide multi-sampling using one SAR conversion and multiple ramp conversions. The SAR can set the voltage level of a first ramp of a multiple ramp conversion, which can then be used to preset the voltage level prior to subsequent ramps.