HIGH LINEARLY WIGIG BASEBAND AMPLIFIER WITH CHANNEL SELECT FILTER

A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplif...

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Main Authors GAO, Steve, SOE, Zaw, JING, Kevin
Format Patent
LanguageEnglish
French
Published 26.05.2017
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Abstract A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations. L'invention concerne un circuit qui comprend un filtre de Sallen-Key, comprenant un suiveur de source qui met en œuvre un amplificateur à gain unité ; et un amplificateur à gain programmable couplé au filtre de Sallen-Key. Le circuit permet un gain programmable par réglage d'un rapport de copie de miroir de courant dans l'amplificateur à gain programmable, qui découple la largeur de bande du circuit de ses réglages de gain. L'amplificateur à gain programmable peut comprendre un convertisseur tension/courant différentiel, une paire de miroirs de courant, et des étages de gain de sortie programmables. Le filtre de Sallen-Key et au moins une branche de l'amplificateur à gain programmable peuvent comprendre des transistors agencés dans des configurations de circuit identiques.
AbstractList A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations. L'invention concerne un circuit qui comprend un filtre de Sallen-Key, comprenant un suiveur de source qui met en œuvre un amplificateur à gain unité ; et un amplificateur à gain programmable couplé au filtre de Sallen-Key. Le circuit permet un gain programmable par réglage d'un rapport de copie de miroir de courant dans l'amplificateur à gain programmable, qui découple la largeur de bande du circuit de ses réglages de gain. L'amplificateur à gain programmable peut comprendre un convertisseur tension/courant différentiel, une paire de miroirs de courant, et des étages de gain de sortie programmables. Le filtre de Sallen-Key et au moins une branche de l'amplificateur à gain programmable peuvent comprendre des transistors agencés dans des configurations de circuit identiques.
Author GAO, Steve
SOE, Zaw
JING, Kevin
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DocumentTitleAlternate AMPLIFICATEUR EN BANDE DE BASE WIGIG À HAUTE LINÉARITÉ À FILTRE DE SÉLECTION DE CANAL
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RelatedCompanies TENSORCOM, INC
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Snippet A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to...
SourceID epo
SourceType Open Access Repository
SubjectTerms AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
Title HIGH LINEARLY WIGIG BASEBAND AMPLIFIER WITH CHANNEL SELECT FILTER
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