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:
Aug. 18, 2015

Filed:

May. 15, 2013
Applicant:

Honeywell International Inc., Morristown, NJ (US);

Inventor:

Paul M Werking, Rockford, MN (US);

Assignee:

Honeywell International Inc., Morristown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/36 (2006.01); H03G 3/00 (2006.01); H03F 1/32 (2006.01); H03F 3/45 (2006.01); H03G 1/00 (2006.01);
U.S. Cl.
CPC ...
H03G 3/00 (2013.01); H03F 1/3211 (2013.01); H03F 3/45475 (2013.01); H03G 1/0035 (2013.01); H03G 1/0088 (2013.01); H03F 2200/261 (2013.01); H03F 2203/45138 (2013.01); H03F 2203/45522 (2013.01); H03F 2203/45528 (2013.01);
Abstract

A variable-gain current conveyor-based instrumentation amplifier without introducing distortion. An exemplary variable-gain instrumentation amplifier includes a first dual-output transconductance amplifier (DOTA) (i.e., current conveyor) that receives a first input voltage, a second DOTA that receives a second input voltage, a first resistive element connected between the first and second DOTA, an amplifier connected to the second DOTA at an inverting input, and a second resistive element that connects the second DOTA and the inverting input to an output of the amplifier. At least one of the resistive elements is a variable resistive element.


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