caa a22 4500 606206019 CHVBK 20210128101009.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00034-014-9902-6 doi (NATIONALLICENCE)springer-10.1007/s00034-014-9902-6 Transconductor Linearization Based On Adaptive Biasing of Source-Degenerative MOS Transistors [Elektronische Daten] [Farzan Rezaei, Seyed Azhari] This paper presents a novel linearization technique for a transconductance amplifier. Resistive source degeneration as commonly used technique for linearization of the differential pairs suffers from input-dependent variations in degeneration resistance when passive resistor is substituted by active counterpart to achieve lower area usage and tuning ability. The proposed technique is based on using an auxiliary circuit to adaptively bias degenerative transistors to reduce the resistance nonlinearity caused by applying input voltage. The proposed transconductor employs $$\pm $$ ± 0.9V power supply and totally consumes 139.2 $$\upmu $$ μ W in which the portion of auxiliary circuit including tuning circuit is only 17%. Simulation results in 0.18 $$\upmu $$ μ m TSMC technology by Hspice simulator indicate 13.2 dB reduction in the third-order harmonic distortion of proposed transconductor's output current compared with conventional case, when a 1.2Vp-p input voltage is applied at 10 MHz frequency. The corner case and Monte Carlo simulations verify the robustness of the proposed technique against the fabrication process errors. Springer Science+Business Media New York, 2014 Adaptive biasing nationallicence Linearity nationallicence Source degeneration nationallicence Transconductor nationallicence Rezaei Farzan Department of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran aut Azhari Seyed Department of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/4(2015-04-01), 1149-1165 0278-081X 34:4<1149 2015 34 34 https://doi.org/10.1007/s00034-014-9902-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-014-9902-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rezaei Farzan Department of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran aut NATIONALLICENCE 700 1- Azhari Seyed Department of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/4(2015-04-01), 1149-1165 0278-081X 34:4<1149 2015 34 34