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1. WO2000027027 - LINEAR DIFFERENTIAL BIPOLAR TRANSCONDUCTOR WITH CURRENT COMPENSATION

Publication Number WO/2000/027027
Publication Date 11.05.2000
International Application No. PCT/US1999/024545
International Filing Date 20.10.1999
IPC
H03F 1/32 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
CPC
H03F 1/3211
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
3211in differential amplifiers
Applicants
  • MICROTUNE, INC. [US]/[US]
Inventors
  • EZELL, Richard, William
Agents
  • TANNENBAUM, David, H.
Priority Data
09/183,35230.10.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LINEAR DIFFERENTIAL BIPOLAR TRANSCONDUCTOR WITH CURRENT COMPENSATION
(FR) TRANSCONDUCTEUR BIPOLAIRE LINEAIRE DIFFERENTIEL A COMPENSATION DE COURANT
Abstract
(EN)
A high linearity transconductance stage is arranged with a loss cancellation method to remove the nonlinearity of a typical transconductance circuit. The loss cancellation method uses a series of transistors and resistors to supply a controlled feedback current to cancel the result of the change $g(D) in voltage across the input of the transistor used to provide the transconductance for the transconductance stage of a circuit, such as an amplifier, a mixer or other active circuit.
(FR)
Un étage de transconductance à haute linéarité est conçu selon un procédé d'annulation des pertes afin d'éliminer la non linéarité d'un circuit de transconductance typique. Le procédé d'annulation des pertes utilise une série de transistors et de résistances pour fournir un courant de rétroaction régulé afin d'annuler le résultat du changement $g(D) dans une tension à l'entrée du transistor utilisé pour fournir la transconductance à l'étage de transconductance d'un circuit, tel qu'un amplificateur, un mélangeur ou un autre circuit actif.
Also published as
Latest bibliographic data on file with the International Bureau