Journal
IEEE SOLID-STATE CIRCUITS LETTERS
Volume 1, Issue 7, Pages 170-173Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSSC.2019.2896457
Keywords
Amplifiers; analog integrated circuits; class AB circuits CMOS integrated circuits; folded cascode (FC) amplifier
Funding
- Spanish Agencia Estatal de Investigacion [TEC2016-80396-C2-1-R]
- Fondo Europeo de Desarrollo Regional [TEC2016-80396-C2-1-R]
- Obra Social La Caixa, Fundacion Caja Navarra (Convocatoria 2018 de Captacion de Talento)
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An enhanced super class AB recycling folded cascode (RFC) operational transconductance amplifier is presented. It combines various adaptive biasing and transconductance enhancement techniques. Measurement results of a CMOS 130 nm test chip prototype show an improvement in slew rate and gain-bandwidth product by factors 100 and 27, respectively, compared to the conventional RFC topology for the same supply voltage and bias currents.
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