SPICE simulation and tradeoffs of CMOS LNA performance with source-degeneration inductor

Author

Tsui, Hau-Yiu ; Lau, Jack

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong

Volume

47

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

62

Lastpage

65

Abstract

In this brief, we study the tradeoffs of CMOS low noise amplifiers using source-degeneration inductor with both experimental data and simulation data. SPICE models based on the quasistatic (QS) assumption ignores the channel resistance and leads designers to overly rely on source-degeneration inductance. The non-QS model is much better. Source inductor adversely affects noise and gain. The parasitic capacitance at the gate imposes additional challenges for matching

Keywords

CMOS analogue integrated circuits; SPICE; UHF amplifiers; UHF integrated circuits; circuit simulation; impedance matching; inductors; CMOS LNA; LNA performance; SPICE simulation; gain; matching; noise; parasitic capacitance; quasistatic assumption; source-degeneration inductor; Circuit noise; Doping; Electric resistance; Frequency; Immune system; Impedance; Inductors; Low-noise amplifiers; SPICE; Semiconductor device modeling;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.818895

Filename

818895