A DC-to-22 GHz 8.4mW compact dual-feedback wideband LNA in 90 nm digital CMOS

Author

Okushima, M. ; Borremans, J. ; Linten, D. ; Groeseneken, G.

Author_Institution

IMEC, Leuven, Belgium

fYear

2009

fDate

7-9 June 2009

Firstpage

295

Lastpage

298

Abstract

A dual-feedback topology to extend bandwidth of resistive feedback LNAs is proposed in this paper. Active source follower shunt-shunt feedback using a shunt peaking inductor to extend the 3-dB and input matching bandwidth is employed, combined with series-shunt feedback for extended impedance matching using a source inductor. A prototype in 90 nm digital CMOS achieves a high 3-dB bandwidth of 29 GHz while preserving adequate input matching up to 22 GHz. The miniature area (0.017 mm²) and low power consumption (8.4 mW) make the solution very attractive for low-cost very wideband LNA implementation.

Keywords

CMOS digital integrated circuits; MMIC amplifiers; feedback amplifiers; field effect MMIC; impedance matching; low noise amplifiers; low-power electronics; nanoelectronics; wideband amplifiers; active source follower; bandwidth 29 GHz; compact resistive dual-feedback wideband LNA; digital CMOS; dual-feedback topology; impedance matching; power 8.4 mW; power consumption; series-shunt feedback; shunt peaking inductor; shunt-shunt feedback; size 90 nm; source inductor; Active inductors; Bandwidth; Circuit topology; Impedance matching; Output feedback; Parasitic capacitance; Prototypes; Radio frequency; Shunt (electrical); Wideband; CMOS; low-noise-amplifier (LNA); multiband receiver; resistive feedback; ultra-wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2009. RFIC 2009. IEEE

Conference_Location

Boston, MA

ISSN

1529-2517

Print_ISBN

978-1-4244-3377-3

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2009.5135543

Filename

5135543