Title :
A Wide-band CMOS Low-Noise Amplifier for TV Tuner Applications
Author :
Liao, Youchun ; Tang, Zhangwen ; Min, Hao
Author_Institution :
Fudan Univ., Shanghai
Abstract :
In this paper, a wide-band CMOS low-noise amplifier (LNA) is presented, in which the thermal noise of the input MOSFET is canceled exploiting a noise-canceling technique. The LNA is designed under input/output impedance matching condition. And its noise figure (NF) and linearity analysis are investigated particularly. The LNA chip is implemented in a 0.25-mum 1P5M RF CMOS process. Measurement results show that in 50-860 MHz, the gain is about 13.4 dB, the NF is from 2.4 dB to 3.5 dB, and the input-referred third-order intercept point (IIP3) is 3.3 dBm. The chip consumes 30 mW at 2.5-V power supply and the core size is only 0.15 mm times 0.18 mm.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; VHF amplifiers; impedance matching; integrated circuit noise; low noise amplifiers; thermal noise; tuning; wideband amplifiers; CMOS low-noise amplifier; MOSFET; TV tuner; UHF amplifiers; VHF amplifiers; frequency 50 MHz to 860 MHz; impedance matching; linearity analysis; noise figure 2.4 dB to 3.5 dB; noise-canceling technique; power 30 mW; size 0.15 mm; size 0.18 mm; size 0.25 mum; thermal noise; third-order intercept point; voltage 2.5 V; wide-band amplifier; Impedance matching; Linearity; Low-noise amplifiers; MOSFET circuits; Noise cancellation; Noise figure; Noise measurement; Radio frequency; TV; Tuners;
Conference_Titel :
Solid-State Circuits Conference, 2006. ASSCC 2006. IEEE Asian
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9734-7
Electronic_ISBN :
0-7803-97375-5
DOI :
10.1109/ASSCC.2006.357900
