Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 1, 2022
Patent Application Number
17059709
Date Filed
May 29, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
Circuitry and techniques are described herein for performing accurate and low power conversion of an analog value into a digital value. According to some aspects, this disclosure describes a successive approximation register (SAR) analog to digital converter (ADC). According to some aspects the SAR ADC comprises an active integrator between a sample and hold stage and a comparator stage. The active integrator operates differently dependent on whether the SAR ADC is operated in a sample phase or a conversion phase. According to other aspects, the SAR ADC utilizes a ring oscillator-based comparator to compare a sampled analog input value to a plurality of reference values to determine a digital value representing the analog value.
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