Class AB low-voltage CMOS Voltage Follower

A modification of the flipped voltage follower (FVF) that provides efficient Class-AB operation is presented. The modified circuit has the capability to source and sink large output currents and, compared to previous approaches, it is able to maintain the output node at a constant voltage with respe...

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Bibliographic Details
Published in2007 50th Midwest Symposium on Circuits and Systems pp. 887 - 890
Main Authors Padilla-Cantoya, I., Molinar-Solis, J.E., Ducoudary, G.O.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2007
Subjects
Circuit simulation
Feedback circuits
Impedance
Negative feedback
Output feedback
Power dissipation
Rails
Voltage
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Summary:A modification of the flipped voltage follower (FVF) that provides efficient Class-AB operation is presented. The modified circuit has the capability to source and sink large output currents and, compared to previous approaches, it is able to maintain the output node at a constant voltage with respect to the input. This is achieved with a very small increase in the power dissipation and very small additional devices. Simulation results of this structure verifying the proposed operation are provided.
ISBN:1424411750
9781424411757
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2007.4488713