An inductorless CMOS LNA with single input and differential output

Author

Jiang, Jinguang ; Li, Qingyun ; Zhou, Xifeng

Author_Institution

Dept. of Phys. Sci. & Technol., Wuhan Univ., Wuhan, China

fYear

2011

fDate

25-28 Oct. 2011

Firstpage

882

Lastpage

885

Abstract

This paper presents a design technique of an inductorless CMOS LNA with single-ended input and differential output. Its main amplifier circuit exploits a non-inverting cascode common gate path and an inverting cascode common source path to realize the balun function. No inductor is used in the input impendence match. The noise contribution of components is represented by equivalent current and voltage sources and analyzed for minimization methods. The proposed LNA is processed in a RF 0.18μm CMOS process. With the proposed techniques, the LNA features NF 2.88dB, S11 -20.1dB, voltage gain 21.1dB, P_1dB -12.9dBm at 1.575GHz.

Keywords

CMOS analogue integrated circuits; baluns; differential amplifiers; impedance matching; inductors; low noise amplifiers; radiofrequency integrated circuits; RF CMOS process; amplifier circuit; balun function; design technique; differential output; equivalent current source; equivalent voltage source; impedance matching; inductorless CMOS LNA; inverting cascode common source path; minimization method; noninverting cascode common gate path; single-ended input; size 0.18 mum; voltage gain; Antenna measurements; CMOS integrated circuits; Couplings; Noise measurement; Radio frequency; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC (ASICON), 2011 IEEE 9th International Conference on

Conference_Location

Xiamen

ISSN

2162-7541

Print_ISBN

978-1-61284-192-2

Electronic_ISBN

2162-7541

Type

conf

DOI

10.1109/ASICON.2011.6157346

Filename

6157346