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:
Jul. 11, 2023
Filed:
Oct. 29, 2021
Infineon Technologies Ag, Neubiberg, DE;
Peter Bogner, Wernberg, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
An analog-to-digital converter (ADC) circuit comprises one or more most-significant-bit (MSB) capacitors having first ends connected to a voltage comparator and one or more least-significant-bit (LSB) capacitors having first ends connected to the comparator. The circuit further comprises a first switching circuit for each MSB capacitor, configured to selectively connect the second end of the respective MSB capacitor to (a) an input voltage, for sampling, (b) a ground reference, during portions of a conversion phase, and (c) a first conversion reference voltage, for other portions of the conversion phase. The circuit still further comprises a second switch circuit, for each LSB capacitor, configured to selectively connect the second end of the respective LSB capacitor between (d) the ground reference, during portions of the conversion phase, and (e) a second conversion reference voltage, for other portions of the conversion phase, the second conversion reference voltage differing from the first.