Title :
A wide-band low noise amplifier using cross-coupled technique with linear in dB gain-control
Author :
Chang, Chia-Hung ; Lee, Ching-Feng ; Tsou, Yu-Lin
Author_Institution :
SOC Technol. Center, Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
This paper realized a broadband LNA with cross-coupled technique to achieve a low noise characteristic. The current steering method and linear-in-dB control technique are employed in the amplifier to provide a wide range and linear-in-dB gain control. The dynamic gain range is about 27 dB with linearity error lower than plusmn0.5 dB. The noise figure of LNA is about 3 dB at the maximum gain of 17 dB. The LNA dissipates 10.8 mA from 3.3 V power supply, which occupies 945 um times 860 um of chip area including bonding pads.
Keywords :
circuit noise; interference suppression; low noise amplifiers; wideband amplifiers; bonding pads; broadband LNA; chip area; cross-coupled technique; current 10.8 mA; current steering method; dynamic gain; gain 17 dB; linear-in-dB gain control; linearity error; noise figure; power supply; size 860 mum; size 945 mum; voltage 3.3 V; wide-band low noise amplifier; Bandwidth; Broadband amplifiers; Circuits; Frequency; Gain control; Low-noise amplifiers; Noise figure; Topology; Tuners; Virtual manufacturing; Cross coupled; component; linear in dB; low noise amplifier(LNA); tuner; variable gain control;
Conference_Titel :
Ultra-Wideband, 2009. ICUWB 2009. IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2930-1
Electronic_ISBN :
978-1-4244-2931-8
DOI :
10.1109/ICUWB.2009.5288837
