Analysis and Design of Configurable LNAs in Feedback Common-Gate Topologies
Authors:
- A. LiscidiniALA. Liscidini
- G. MartiniGMG. Martini
- D. MastantuonoDMD. Mastantuono
- R. CastelloRCR. Castello
- 1 August 2008
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems II: Express Briefs
- Vol. 55 (8) , 733-737
Abstract
A unified description of multiple feedback common-gate low-noise amplifiers (LNAs) is presented, providing analytical expressions for gain, noise figure, linearity, and stability conditions. Moreover, from the theory, a new methodology for LNA optimization is developed. This new approach, called adaptive optimization, uses the ability to reconfigure the feedback network to match the amplifier characteristics to the changing working conditions. Results of simulation of LNAs with different feedback types are shown, and they confirm the theory presented.Keywords
This publication has 13 references indexed in Scilit:
- A 0.18-$muhbox m$CMOS Selective Receiver Front-End for UWB ApplicationsIEEE Journal of Solid-State Circuits, 2006
- G/sub m/-boosted common-gate LNA and differential colpitts VCO/QVCO in 0.18-/spl mu/m CMOSIEEE Journal of Solid-State Circuits, 2005
- A variable gain RF front-end, based on a Voltage-Voltage feedback LNA, for multistandard applicationsIEEE Journal of Solid-State Circuits, 2005
- Wide-Band CMOS Low-Noise Amplifier Exploiting Thermal Noise CancelingIEEE Journal of Solid-State Circuits, 2004
- Concurrent multiband low-noise amplifiers-theory, design, and applicationsIEEE Transactions on Microwave Theory and Techniques, 2002
- Distortion in elementary transistor circuitsIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1999
- A 1.5-V, 1.5-GHz CMOS low noise amplifierIEEE Journal of Solid-State Circuits, 1997
- Determination of stability using return ratios in balanced fully differential feedback circuitsIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1995
- A comparison of two approaches to feedback circuit analysisIEEE Transactions on Education, 1992
- Effect of Feedback on ImpedanceBell System Technical Journal, 1943