Title
Optimizing Power Consumption vs. Linearization in CMFB Amplifiers with Source Degeneration
Abstract
In this work, a low power consumption approach to achieve linear Differential Difference Amplifier CMFB circuits is introduced. A solution based on source degeneration in the input differential pairs is proposed to reduce input range linearity limitations as well as CMFB input pair large current consumption by accurately selecting both current and degeneration resistance to maximize linearity. The proposed technique has been implemented in a CMFB amplifier of a fully differential OTA, resulting in a THD of 0.026% when using degeneration resistances of 48 mΩ and 53.3 μ A of bias current. Moreover, linearity improvement using the proposed technique has shown better figures than increasing only the bias current.
Year
DOI
Venue
2018
10.1109/ICECS.2018.8617958
2018 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Keywords
Field
DocType
Fully Differential Amplifier (FDA),CMFB,Source Degeneration,Linearization,Low Power,DDA,THD
Topology,Total harmonic distortion,Computer science,Linearity,Electronic engineering,Resistor,Transistor,Electronic circuit,Linearization,Amplifier,Biasing
Conference
ISBN
Citations 
PageRank 
978-1-5386-9116-8
1
0.39
References 
Authors
3
4
Name
Order
Citations
PageRank
C. Bauza110.39
J. M. Sanchez-Chiva210.39
Jordi Madrenas315027.87
Daniel Fernández4276.82