Title :
Low-Area Active-Feedback Low-Noise Amplifier Design in Scaled Digital CMOS
Author :
Borremans, Jonathan ; Wambacq, Piet ; Soens, Charlotte ; Rolain, Yves ; Kuijk, Maarten
Author_Institution :
IMEC, Leuven
Abstract :
The emerging concept of multistandard radios calls for low-noise amplifier (LNA) solutions able to comply with their needs. Meanwhile, the increasing cost of scaled CMOS pushes towards low-area solutions in standard, digital CMOS. Feedback LNAs are able to meet both demands. This paper is devoted to the design of low-area active-feedback LNAs. We discuss the design of wideband, narrowband and multiband implementations. We demonstrate that competitive RF performance is achievable thanks to CMOS downscaling, pleasing many applications because of their low cost (digital CMOS) and low area (bondpad size).
Keywords :
CMOS digital integrated circuits; feedback amplifiers; integrated circuit design; low noise amplifiers; radiofrequency amplifiers; radiofrequency integrated circuits; wideband amplifiers; CMOS downscaling; RF performance; bondpad size; low cost digital CMOS; low-area active-feedback LNA design; low-noise amplifier; multiband implementation; multistandard radios; narrowband implementation; wideband design; Circuits; Costs; Feedback; Impedance matching; Inductors; Low-noise amplifiers; Narrowband; Noise cancellation; Noise figure; Radio frequency; CMOS; LNA; dual-band; feedback; inductorless; low area; low-noise amplifier; narrowband; stacked inductor; wideband;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2008.2005434
