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:
Jan. 19, 2021
Filed:
Mar. 05, 2020
Infineon Technologies Ag, Neubiberg, DE;
Josef Niederl, Klagenfurt-Wölfnitz, AT;
Peter Bogner, Wernberg, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A switched-capacitor analog-to-digital converter (ADC) includes: a main digital-to-analog converter (DAC) circuit; a comparator coupled to the main DAC circuit and configured to determine whether the input to the comparator exceeds a pre-determined threshold; and a supplementary DAC circuit coupled to the main DAC circuit, wherein the switched-capacitor ADC is configured to operate in at least one of a first mode or a second mode, wherein in the first mode for measuring an offset of the switched-capacitor ADC, the supplementary DAC circuit is configured to shift a voltage at an output of the main DAC circuit by a first value having a first polarity, and wherein in the second mode for measuring a full-scale gain error of the switched-capacitor ADC, the supplementary DAC circuit is configured to shift the voltage at the output of the main DAC circuit by a second value having a second polarity opposite the first polarity.