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. 16, 2004
Filed:
Feb. 24, 2003
Applicant:
Inventor:
Bernard Robert Gregoire, Jr., Bozeman, MT (US);
Assignee:
AMI Semiconductor, Inc., Pocatello, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/16 ; G05F 3/20 ;
U.S. Cl.
CPC ...
G05F 3/16 ; G05F 3/20 ;
Abstract
An enhanced output impedance current mirror in which the operational amplifier includes a set of four MOSFETs having a common gate that is connected to a drain terminal of one of the differential pairs. Two of the MOSFETs reside in parallel in the current path of each of the MOSFETs of the differential pair. The differential pair MOSFET that has its drain terminal connected to the common gate also has a gate terminal that is connected to the common node between the two other MOSFETs in its current path.