Anzeige
Erschienen in:
1995 | OriginalPaper | Buchkapitel
Multistage Compensation Techniques
verfasst von : Rudy G. H. Eschauzier, Johan H. Huijsing
Erschienen in: Frequency Compensation Techniques for Low-Power Operational Amplifiers
Verlag: Springer US
Enthalten in: Professional Book Archive
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
In many situations the gain of a two-stage amplifier is not sufficient and more stages are necessary. The traditional approach is to add current follower or voltage follower stages to the two-stage circuits of the previous chapter. These followers do not change the high frequency behavior appreciably, but can nevertheless improve the low-frequency gain. A serious drawback, however, is that the cascodes and emitter (source) followers increase the minimum supply voltage. Since low voltage is an essential step towards low power, a higher supply voltage will directly hamper the obtainable bandwidth-to-power ratio.