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 | , , |
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Format | Patent |
Language | English French |
Published |
26.05.2017
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Subjects | |
Online Access | Get full text |
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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. |
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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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Discipline | Medicine Chemistry Sciences |
DocumentTitleAlternate | AMPLIFICATEUR EN BANDE DE BASE WIGIG À HAUTE LINÉARITÉ À FILTRE DE SÉLECTION DE CANAL |
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Notes | Application Number: WO2016US62224 |
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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... |
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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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