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:
Apr. 18, 2018
Ams Ag, Premstaetten, AT;
Daisuke Horii, Tokyo, JP;
AMS AG, Premstaetten, AT;
Abstract
A multi-level capacitive digital-to-analog converter, comprises at least one capacitor switch circuit () including a differential operational amplifier () having a first input node (E) and a second input node (E). A first current path () is coupled to a first reference input terminal (E) to apply a first reference potential (RefP) and the second current path () is coupled to a second reference input terminal (E) to apply a second reference potential (RefN). The at least one capacitor switch circuit () comprises a first controllable switch () being arranged between the second input node (E) of the differential operational amplifier () and the first current path (). The at least one capacitor switch circuit () comprises a second controllable switch () being arranged between the first input node (E) of the differential operational amplifier () and the second current path ().