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:
Dec. 26, 2023
Filed:
Feb. 25, 2022
Applicant:
Microchip Technology Incorporated, Chandler, AZ (US);
Inventors:
Michael Harris, Chandler, AZ (US);
Daniel Meacham, Del Mar, CA (US);
Assignee:
Microchip Technology Incorporated, Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/22 (2006.01); G05F 1/46 (2006.01); G05F 3/30 (2006.01);
U.S. Cl.
CPC ...
G05F 3/225 (2013.01); G05F 1/461 (2013.01); G05F 3/30 (2013.01);
Abstract
A curvature compensated bandgap circuit that is capable of matching best-in-class two (2) parts-per-million performance without over-temperature trimming. This improves performance metrics for precision voltage reference products without requiring individual device tuning during production thereof. A core bandgap circuit comprises a main operational amplifier having a second order bowed voltage response over temperature. A ptat circuit is coupled to the core bandgap circuit to provide a sigmoidal third order shape for the bandgap voltage.