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. 31, 2023
Filed:
Feb. 16, 2021
Applicant:
Board of Regents, the University of Texas System, Austin, TX (US);
Inventors:
Xiyuan Tang, Austin, TX (US);
Nan Sun, Austin, TX (US);
Assignee:
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01); H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/002 (2013.01); H03M 3/458 (2013.01);
Abstract
An exemplary incremental two-step capacitance-to-digital converter (CDC) with a time-domain sigma-delta modulator (TDΔΣM) includes a voltage-controlled oscillator (VCO)-based integrator that can be used in a low-order loop configuration. Example prototypes are disclosed, which when fabricated in 40-nm CMOS technology, provides CDC resolution of 0.29 fF while dissipating only 0.083 nJ per conversion.