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. 02, 2004
Filed:
Sep. 22, 2000
James L. Gorecki, Hillsboro, OR (US);
Bill G. Gazeley, Corvallis, OR (US);
Yaohua Yang, West Linn, OR (US);
Lattice Semiconductor Corp., Hillsboro, OR (US);
Abstract
A double differential comparator can be efficiently implemented utilizing a first comparator stage having a folded cascode with floating gate input terminals and clamped single-ended output, and a capacitively coupled input stage for transferring a weighted sum of input signals to the floating gates of the first comparator stage. Additionally, the double differential comparator can be integrated into fully differential programmable analog integrated circuits. Such fully differential programmable analog integrated circuits can also include a differential output digital-to-analog converter to be used with or without the double differential comparator.