An 180nm CMOS Low Noise Amplifier with single ended input and differential output: RF and Non linear signal processing

Author

Dommaraju, Sunny Raj ; Saiyu Ren

Author_Institution

Electr. Eng., Wright State Univ., Dayton, OH, USA

fYear

2012

fDate

25-27 July 2012

Firstpage

186

Lastpage

189

Abstract

A 1.4 GHz high gain Low Noise Amplifier (LNA) with single ended input and differential output for global navigation systems like GPS operating in L3 and L4 bands is proposed in this paper. This design has two stages, the first stage uses an inductor-degeneration topology and the second stage has two branches to generate amplified differential output and it reuses the current from positive terminal to reduce the disturbance at high gain due to mismatch. The simulation results for this design in CMOS 180 nm technology are very competitive with the present day designs. This LNA consumes 3.5 mA current under 1.8 V power supply and exhibits a differential voltage gain of 43 dB, 1 dB compression point is -12.8 dBm and IIP3 is 1.2 dBm. The simulated noise figure is 4.02 dB in the frequency range of L3 and L4 bands.

Keywords

CMOS analogue integrated circuits; Global Positioning System; UHF amplifiers; UHF integrated circuits; low noise amplifiers; CMOS low noise amplifier; GPS; amplified differential output; current 3.5 mA; differential output; frequency 1.4 GHz; gain 43 dB; global navigation systems; high gain LNA; high gain low noise amplifier; inductor-degeneration topology; noise figure 4.02 dB; single ended input; size 180 nm; voltage 1.8 V; CMOS; Current Reuse; Differential Output; High Gain; Process Variation;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference (NAECON), 2012 IEEE National

Conference_Location

Dayton, OH

ISSN

0547-3578

Print_ISBN

978-1-4673-2791-6

Type

conf

DOI

10.1109/NAECON.2012.6531053

Filename

6531053