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. 05, 1988
Filed:
Nov. 14, 1986
Applicant:
Inventors:
Kevin E Brehmer, San Jose, CA (US);
Wieser James B, Union City, CA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307355 ; 307362 ; 307279 ; 307530 ;
Abstract
A CMOS high gain strobed comparator comprising a cascoded input differential stage with current mirror loads. The DC biasing for the input stage cascode devices is set by a replica biasing technique. The loads to the input differential stage are simple current mirrors which drive a set of cross-coupled devices that form a latch. The high gain of the comparator is realized in the second stage. The differential output of the comparator drives a second latch. This second cross-coupled latch stores and maintains the comparator data even after the strobe signal destroys the data of the differential output.