NDLI: Power-efficient class AB fully differential amplifier

Content Provider	IET Digital Library
Author	Saso, J. M. Martin, A. J. Lopez Garde, M. P. Angulo, J. Ramirez
Abstract	A class AB one-stage fully differential amplifier is described. It includes adaptive biasing techniques to the conventional class A differential amplifier that improve linearity, gain-bandwidth product and slew rate, maintaining the same DC bias currents and supply voltage requirements. Boosting of dynamic currents for large input signals takes place at the output branches, without internal replication of these currents. This leads to a nearly 100% current efficiency. Measurement results for a 0.5 μm CMOS test chip prototype validate the proposal.
Starting Page	1298
Ending Page	1300
Page Count	3
ISSN	00135194
Volume Number	53
e-ISSN	1350911X
Issue Number	Issue 19, Sep (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/53/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2017.2070
Journal	Electronics Letters
Publisher Date	2017-08-18
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Biasing Technique Amplifiers Class A Differential Amplifier CMOS Integrated Circuit CMOS Test Chip Prototype DC Bias Currents Differential Amplifiers Dynamic Currents Efficiency 100 Percent Gain-Bandwidth Product Power-efficient Class AB Fully Differential Amplifier Size 0.5 Mum Slew Rate Supply Voltage Requirements
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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