Title :
A 0.5-6 GHz Improved Linearity, Resistive Feedback 90-nm CMOS LNA
Author :
Perumana, Bevin G. ; Zhan, Jing-Hong C. ; Taylor, Stewart S. ; Laskar, J.
Author_Institution :
Georgia Inst. of Technol., Atlanta
Abstract :
This paper presents a resistive feedback broadband LNA in 90 nm CMOS which occupies 50 mum times 270 mum of active area. The LNA has 7 GHz 3 dB bandwidth and >24 dB voltage gain. Across 0.5-6 GHz, its input matching is better than -10 dB, noise figure below 2.5 dB, and iIP3 better than -8 dBm. Techniques to improve linearity in resistive feedback LNAs are discussed in detail. The LNA also provides an additional low power mode operation.
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; feedback amplifiers; low noise amplifiers; low-power electronics; microwave amplifiers; CMOS technology; bandwidth 7 GHz; broadband low noise amplifiers; frequency 0.5 GHz to 6 GHz; linearity characteristics; low power mode operation; noise figure; resistive feedback broadband LNA; size 270 mum; size 50 mum; size 90 nm; voltage gain; Bandwidth; Driver circuits; Feedback circuits; Feedback loop; Impedance matching; Linearity; Noise figure; Power amplifiers; Radio frequency; Voltage;
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.2006.357901
