Title :
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
fDate :
1/1/2000 12:00:00 AM
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;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
