DocumentCode :
540832
Title :
A low power, high dynamic range LNA for filterless RF receiver front-ends in 90-nm CMOS
Author :
Werth, Tobias D. ; Bormann, Dirk ; Kaehlert, Stefan ; Liao, Lei ; Wunderlich, Ralf ; Heinen, Stefan
Author_Institution :
Dept. of Integrated Analog Circuits & RF Syst., RWTH Aachen Univ., Aachen, Germany
fYear :
2010
fDate :
7-10 Dec. 2010
Firstpage :
350
Lastpage :
353
Abstract :
A high dynamic range LNA for application in filterless RF receiver front-ends in 90-nm CMOS is presented. A capacitor cross-coupled common-gate LNA has been implemented. The LNA achieves a noise figure of 3.3 dB in the DCS band (1805 - 1880 MHz) and 3.5 dB in the PCS band (1930-1990 MHz). An IIP3 of +6.9 dBm, a 1 dB input compression point of -1 dBm, and a gain of 20 dB in the DCS and 20.2 dB in the PCS band are measured at a DC current consumption of 4 mA from a 2.5 V supply. Desensitization measurements at 20 MHz to 100 MHz blocker offset frequency in the DCS and PCS bands show 1 dB gain desensitization points ranging from -3 dBm to 0 dBm depending on blocker offset frequency.
Keywords :
CMOS integrated circuits; UHF amplifiers; low noise amplifiers; radio receivers; CMOS; DCS band; PCS band; capacitor cross coupled common gate LNA; current 4 mA; filterless RF receiver; frequency 1805 GHz to 1880 GHz; frequency 1930 MHz to 1990 MHz; high dynamic range LNA; low noise amplifier; low power LNA; noise figure 3.3 dB; noise figure 3.5 dB; size 90 nm; voltage 2.5 V; Frequency measurement; Gain; Gain measurement; Impedance matching; Noise; Noise measurement; Radio frequency; CMOS integrated circuits; HF amplifiers; Receivers; noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Conference Proceedings (APMC), 2010 Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-7590-2
Electronic_ISBN :
978-1-902339-22-2
Type :
conf
Filename :
5728716
Link To Document :
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