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:
Nov. 11, 2025
Filed:
Feb. 06, 2024
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Faisal Ahmed Musa, Stittsville, CA;
Ahmed Mustafa, Kanata, CA;
Naim Ben Hamida, Ottawa, CA;
Bruce Beggs, Ottawa, CA;
Assignee:
CIENA CORPORATION, Hanover, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/08 (2006.01); G02F 1/01 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H03K 17/6872 (2013.01); G02F 1/0121 (2013.01);
Abstract
An integrated circuit device includes a digital-to-analog converter with multiple bit slices, each bit slice having a differential pair of driver transistors. A driver circuit includes the differential pairs of driver transistors, multiple series cascode transistors, and current bleed paths to modify drain-to-source currents in the various cascode transistors. Additional embodiments include series peaking circuits, back termination networks, and neutralization capacitors. Other embodiments are disclosed.