Improved current mirror for increasing phase margin of X-band GaAs pseudo-operational amplifiers

Improved current mirror for increasing phase margin of X-band GaAs pseudo-operational amplifiers

An original concept is presented for increasing the performance of a pseudo‐operational amplifier. This concept proposes a current mirror in which an inductance improves its gain and phase at very high frequencies. Using this structure in the design of a GaAs pseudo‐operational amplifier, very promi...

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Veröffentlicht in:Microwave and optical technology letters 2000-02, Vol.24 (3), p.166-168
Hauptverfasser: Chelouah, Abdenour, Algani, Catherine, Alquié, Georges
Format: Artikel
Sprache:eng
Schlagworte:
current mirror
MESFET
phase margin
pseudo-operational amplifier
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Zusammenfassung:An original concept is presented for increasing the performance of a pseudo‐operational amplifier. This concept proposes a current mirror in which an inductance improves its gain and phase at very high frequencies. Using this structure in the design of a GaAs pseudo‐operational amplifier, very promising simulation and experimental results are obtained. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 24: 166–168, 2000.
ISSN:0895-2477
1098-2760
DOI:10.1002/(SICI)1098-2760(20000205)24:3<166::AID-MOP6>3.0.CO;2-H