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:
Aug. 12, 1997
Filed:
Nov. 13, 1995
Applicant:
Inventors:
Kevin J McCall, Leominster, MA (US);
David Reynolds, Georgetown, MA (US);
Assignee:
Analog Devices, Inc., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
326 82 ; 326 27 ; 326 34 ; 326 68 ;
Abstract
According to embodiments of the present invention, a driver circuit, has first and second reference voltage rails for receiving first and second reference voltages, has first and second inputs for receiving an input differential signal and has first and second outputs for providing an output differential signal. The driver circuit comprises a first CMOS transistor, a second CMOS transistor, and first, second and third current sources. Positive voltage levels with respect to ground at the first and second outputs, are within typical acceptable ECL output voltage levels.