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A 0.02-to-6GHz SDR balun-LNA using a triple-stage inverter-based amplifier

Martins, M. A. ; Pui-In Mak ; Martins, R. P.

2012 IEEE International Symposium on Circuits and Systems (ISCAS), 2012, p.472-475

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Título:
A 0.02-to-6GHz SDR balun-LNA using a triple-stage inverter-based amplifier
Autor: Martins, M. A. ; Pui-In Mak ; Martins, R. P.
Assuntos: CMOS integrated circuits ; Gain ; Impedance matching ; Noise ; Noise measurement ; Radio frequency ; Receivers
É parte de: 2012 IEEE International Symposium on Circuits and Systems (ISCAS), 2012, p.472-475
Descrição: This paper describes a software-defined-radio (SDR) balun low-noise amplifier (LNA) with no explicit bias circuit, inductor or ac-coupling network. It relies on a triple-stage inverter-based amplifier with resistive feedback to maximize the bandwidth and realize single-to-differential conversion. RC degeneration applied at the last gain stage enhances both linearity and output gain-phase balancing. Optimized in 65-nm CMOS the balun-LNA covers the 0.02-to-6-GHz band with S 11 >;-11 dB, voltage gain of 21.2-dB and noise figure below 3.2-dB. The in-band IIP2 (IIP3) is +36 to +51 dBm (-5.6 to -5.3 dBm). The power consumption is 7.9 mW at 1.2 V.
Editor: IEEE
Idioma: Inglês

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