Common mode feedback circuits for low voltage fully-differential amplifiers
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Date
2016
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Publisher
World Scientific Publishing Co. Pte Ltd wspc@wspc.com.sg
Abstract
Continuous time common mode feedback (CMFB) circuits for low voltage, low power applications are proposed. Four circuits are proposed for gate/bulk-driven pseudo-differential transconductors operating on sub-1-V power supply. The circuits are validated for a bulk-driven pseudo-differential transconductor operating on 0.5V in 0.18?m standard CMOS technology. Simulation results reveal that the proposed CMFB circuits offer power efficient solution for setting the output common mode of the transconductors. They also load the transconductor capacitively offering capacitance of about 1fF to tens of femto farads. © 2016 World Scientific Publishing Company.
Description
Keywords
Capacitance, CMOS integrated circuits, Continuous time systems, Differential amplifiers, Low power electronics, Reconfigurable hardware, Transconductance, Bulk-driven, Common mode feedback, Fully differential amplifiers, Low Power, Low power application, Power-efficient solutions, Pseudo differential, Standard CMOS technology, Feedback amplifiers
Citation
Journal of Circuits, Systems and Computers, 2016, 25, 10, pp. -