Title :
A 900 MHz active CMOS LNA with a bandpass filter
Author :
Chang, Yuyu ; Choma, John, Jr. ; Wills, Jack
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A new active CMOS LNA with bandpass filtering is proposed. A NCG Q-enhancement technique is utilized to extend Q tuning range. By employing standard 0.5 μm CMOS technology, center frequencies can be tuned between 559 MHz to 970 MHz with Q larger than 400. A LNA is designed and simulated for NADC and AMPS wireless standards to achieve a center frequency at 881 MHz with Q=34, 15.7 dB voltage gain, -12.4 dBm IIP3, 6 dB NE and 52.5 mW power dissipation
Keywords :
CMOS analogue integrated circuits; Q-factor; UHF amplifiers; UHF integrated circuits; active filters; band-pass filters; circuit tuning; integrated circuit noise; 0.5 micron; 15.7 dB; 52.5 mW; 559 to 970 MHz; 6 dB; 900 MHz; AMPS wireless standard; NADC wireless standard; Q tuning range; Q-enhancement technique; active CMOS LNA; bandpass filter; negative conductance generator; noise analysis; Active noise reduction; Band pass filters; CMOS technology; Circuit noise; Filtering; Impedance; Inductors; Noise generators; Radio frequency; Voltage;
Conference_Titel :
Mixed-Signal Design, 1999. SSMSD '99. 1999 Southwest Symposium on
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-5510-5
DOI :
10.1109/SSMSD.1999.768586
