Programmable low noise amplifier with active-inductor load

Author

Zhuo, W. ; De Gyvez, J. Pineda ; Sanchez-Sinencio, Edgar

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

4

fYear

1998

fDate

31 May-3 Jun 1998

Firstpage

365

Abstract

A common gate CMOS low noise amplifier (LNA) with an active-inductor load is presented. For large inductance values, an on-chip passive inductor requires considerable silicon area and it is quality-factor (Q) limited; a situation that can be rendered as impractical. Hence, the purpose of this work is to seek the possibility of using active inductors in RF circuits as substitutes for passive ones. Moreover, an active inductor opens avenues for programmability, e.g. it is possible to attain an amplifier with a programmable center frequency. It is shown in this paper that by proper design optimization the active-inductor´s noise contribution can be minimized. HSPICE simulations using 0.5 μm HP technology show that our amplifier has a tuning range of half decade for a center frequency at 1 GHz. The simulated gain, noise figure, and power consumption are 20 dB, 3.65 dB, and 14 mW, respectively

Keywords

CMOS analogue integrated circuits; SPICE; UHF amplifiers; UHF integrated circuits; active networks; circuit optimisation; equivalent circuits; inductors; integrated circuit design; integrated circuit modelling; integrated circuit noise; radio receivers; 14 mW; 20 dB; 3.65 dB; HSPICE simulations; RF circuits; active-inductor load; common gate CMOS low noise amplifier; design optimization; equivalent RLC model; frequency response; large inductance values; noise contribution; noise figure; on-chip passive inductor; power consumption; programmable low noise amplifier; Active inductors; Circuit noise; Circuit simulation; Design optimization; Inductance; Low-noise amplifiers; Radio frequency; Radiofrequency amplifiers; Silicon; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-4455-3

Type

conf

DOI

10.1109/ISCAS.1998.698858

Filename

698858