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US Patent 9912346 Digital-based power reduction technique for SAR ADCs

Patent 9912346 was granted and assigned to Ambiq Micro on March, 2018 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Patent Applicant

Ambiq Micro

Current Assignee

Ambiq Micro

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

99123460

Patent Inventor Names

Joseph Hamilton0

Date of Patent

March 6, 2018

Patent Application Number

154867950

Date Filed

April 13, 2017

Patent Primary Examiner

Howard Williams

Patent abstract

A method for pre-loading a SAR ADC with an initial value for a selected range of high-order bits. If the ADC resolves at either an upper or a lower limit set by the pre-loaded value, the ADC may discard the pre-loaded value and perform a full search. Alternatively, the ADC may perform one or more “bonus steps” before giving up and performing a full search.