Title :
CMOS low noise amplifier design techniques using shunt resistive feedback
Author :
Lee, Jeonghoon ; Kim, Youngsik
Author_Institution :
Dept. of Inf. & Technol. Eng., Handong Global Univ., Gyung-buk, South Korea
Abstract :
This paper introduces the design principles of CMOS low noise amplifiers using shunt resistive feedback. Based on the proposed approach, noise of LNA is analyzed and verified via simulator according to the feedback resistance. A tested fully differential low noise amplifier using this feedback topology shows 12.4dB power gain, 4.2dB noise figure, 5.0dBm output P1dB and 5.6dBm OIP3 at 915MHz unlicensed ISM band frequency using standard 0.25-μm CMOS process, while consuming 6.2mA current at supply voltage of 2.5V.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; differential amplifiers; feedback amplifiers; integrated circuit design; low noise amplifiers; 0.25 micron; 12.4 dB; 2.5 V; 4.2 dB; 6.2 mA; 915 MHz; CMOS low noise amplifier; ISM band frequency; amplifier design; amplifier noise; differential low noise amplifier; feedback resistance; feedback topology; shunt resistive feedback; Analytical models; CMOS process; Current supplies; Differential amplifiers; Frequency; Low-noise amplifiers; Noise figure; Output feedback; Testing; Topology;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606587
