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.

Date of Patent:
Oct. 09, 2001

Filed:

Dec. 26, 1999
Applicant:
Inventors:

Robert L. Vyne, Tempe, AZ (US);

Chad Traylor, Chandler, AZ (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 ; H03F 1/36 ;
U.S. Cl.
CPC ...
H03F 3/45 ; H03F 1/36 ;
Abstract

A self compensating operational amplifier (,) including a differential amplifier input stage (,) and a current mirror (,) having an input and an output coupled to the respective outputs (,) of the differential amplifier input stage is provided that uses a feedback amplifier (,) which senses any voltages differences between the input and outputs of the current mirror as current is sourced or sank at the output (,) of the operational amplifier. The feedback amplifier produces a feedback current to the input side (,) of the current mirror wherein the voltage at the input side of the current mirror tracks the voltage swing at the output side of the current mirror so that the voltages track and are substantially matched.


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