Operational amplifier with class-AB+B output stage

Operational amplifier with class-AB+B output stage

An operational amplifier is provided that includes a Class-AB stage and a Class-B stage coupled in parallel with each other to form an output stage. The Class-AB stage is operable to drive an output load. The Class-B stage is also operable to drive the output load and includes a first level-shifting...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Lubbers, Alexander P. G
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An operational amplifier is provided that includes a Class-AB stage and a Class-B stage coupled in parallel with each other to form an output stage. The Class-AB stage is operable to drive an output load. The Class-B stage is also operable to drive the output load and includes a first level-shifting circuit and a second level-shifting circuit. Each of the level-shifting circuits includes a neutralizing transistor.