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:
Mar. 01, 2022
Filed:
Jul. 24, 2020
Hewlett Packard Enterprise Development Lp, Houston, TX (US);
Peter Kurahashi, Ft. Collins, CO (US);
Dacheng Zhou, Ft. Collins, CO (US);
Michael James Marshall, Ft. Collins, CO (US);
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Abstract
Systems and methods are provided for a pipelined analog-to-digital converter (ADC) circuit. The pipelined ADC circuit comprises a plurality of stages. Each stage comprises a differential input configured to receive a differential signal, a multiplying digital-to-analog converter (MDAC) electrically coupled to the input configured to stack voltages of a set of capacitors; a comparator electrically disposed after the MDAC to compare the differential voltages; and a source follower buffer electrically coupled to the first signal line and the second signal line and electrically disposed after the comparator, wherein the MDAC is configured to amplify an output voltage using passive multiplication; and an alignment circuit communicatively connected to a digital bit output of each stage of the plurality of stages, wherein the alignment circuit is configured to delay a digital bit output of each stage for one or more clock cycles and output a digitized representation of a sampled differential signal.