A SWITCHED-OPAMP TECHNIQUE FOR LOW-VOLTAGE SWITCHED-CAPACITOR CIRCUITS

A SWITCHED-OPAMP TECHNIQUE FOR LOW-VOLTAGE SWITCHED-CAPACITOR CIRCUITS

A switched capacitor circuit is described that uses two switchable operational amplifiers that operate in parallel and in alternate clock phases. In a preferred embodiment of the invention, the two operational amplifiers may be implemented by a single two-stage operational amplifier having a common...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LUONG, HOWARD, CAM, CHEUNG, SIN-LUEN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Beschreibung
Zusammenfassung:A switched capacitor circuit is described that uses two switchable operational amplifiers that operate in parallel and in alternate clock phases. In a preferred embodiment of the invention, the two operational amplifiers may be implemented by a single two-stage operational amplifier having a common input stage and two switchable output pairs. The novel switched capacitor circuit may be used in any application that uses a conventional switched capacitor circuit, such as an integrator and a filter means.