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:
Sep. 23, 2025
Filed:
Mar. 14, 2022
Imec Vzw, Leuven, BE;
Shiwei Wang, Leuven, BE;
Marco Ballini, Leuven, BE;
IMEC VZW, Leuven, BE;
Abstract
A sensor readout circuitry comprises: a delta-sigma modulator; an input stage for receiving an analog sensor input signal, wherein a transconductance amplifier and a current mirror incorporate a flipped voltage follower, wherein a feedback signal from a digital-to-analog converter of the delta-sigma modulator is received such that subtraction between the analog sensor input signal and the feedback signal is performed in the transconductance amplifier and mirrored by the current mirror to an output of the input stage; wherein the transconductance amplifier comprises a first, second and third chopper, whereby a chopping loop between the first, second and third choppers is formed including an input transistor and current sources and whereby the analog sensor input signal is in baseband at a node in which the feedback signal is received.