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. 06, 2021
Filed:
Apr. 23, 2020
Silicon Laboratories Inc., Austin, TX (US);
Obaida Mohammed Khaled Abu Hilal, Singapore, SG;
Silicon Laboratories Inc., Austin, TX (US);
Abstract
A method for operating an ADC includes storing a sampled input charge on a capacitance of a sample-and-hold circuit including a DAC. The sampled input charge is stored using a first reference signal coupled to the DAC and a second signal. The sampled input charge has a value based on a first digital code. The method includes converting a second digital code to an analog signal on the first node using the DAC, the sampled input charge, and the first reference signal. The second digital code is one least-significant bit different from the first digital code. The method includes generating a monotonicity indicator indicating whether an output analog signal of the DAC is monotonic in response to a transition of a digital input of the DAC from the first digital code to the second digital code based on a comparison of the analog signal to the second signal.