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. 14, 2023
Filed:
Aug. 12, 2021
Applicant:
Analog Design Services Limited, Clonlara, IE;
Inventors:
Stefan Marinca, Clonlara, IE;
Thomas O'Dwyer, Clonlara, IE;
Assignee:
ANALOG DESIGN SERVICES LIMITED, Clonlara, IE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/30 (2006.01); G05F 3/26 (2006.01);
U.S. Cl.
CPC ...
G05F 3/30 (2013.01); G05F 3/26 (2013.01);
Abstract
Reference circuits are described. In particular reference circuits that use a plurality of cascaded proportional to absolute temperature, PTAT, cells are described. In the circuits disclosed, currents of the low current density arm of first PTAT cell are mirrored into the high current density arms of a second PTAT cell such that any deviation of current in the low current density arm of the first cell will be replicated as the current in the high current density arm of the second cell. In this way low noise circuits can be provided.