Super class AB RFC OTA using non-linear current mirrors

An alternative approach to the design of super class AB recycling folded cascode operational transconductance amplifiers is proposed. Instead of using local common-mode feedback for boosting dynamic currents, simple current mirrors with input transistors entering triode region for large currents are...

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Veröffentlicht in:	Electronics letters 2018-11, Vol.54 (23), p.1317-1318
Hauptverfasser:	Garde, M.P, Lopez-Martin, A.J, Carvajal, R.G, Galan, J.A, Ramirez-Angulo, J
Format:	Artikel
Sprache:	eng
Schlagworte:	circuit feedback Circuits and systems CMOS analogue integrated circuits CMOS test chip current mirrors dynamic current boosting input transistors integrated circuit design local common‐mode feedback nonlinear current mirrors operational amplifiers recycling size 0.5 mum super class AB recycling folded cascode operational transconductance amplifier design super class AB RFC OTA triode region
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Beschreibung
Zusammenfassung:	An alternative approach to the design of super class AB recycling folded cascode operational transconductance amplifiers is proposed. Instead of using local common-mode feedback for boosting dynamic currents, simple current mirrors with input transistors entering triode region for large currents are employed. Measurement results from a 0.5 μm CMOS test chip validate the proposal.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2018.6880