A wideband balun–LNA

Abstract In this paper a wideband Low Noise Amplifier (LNA) is introduced which also converts the single-ended input to differential signal at the output. It is based on common-source amplifier with active-feedback to provide input matching. The proposed amplifier has the input matched from 500 MHz to 2.5 GHz. It achieves the maximum voltage gain of 24 dB in this band, while the minimum noise figure (NF) is 2.35 dB. The simulated OIP3 of this amplifier is equal to 21 dBm. The LNA has been designed and simulated in a 0.18 μm CMOS process.

[1]  S.S. Taylor,et al.  A 5GHz resistive-feedback CMOS LNA for low-cost multi-standard applications , 2006, 2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers.

[2]  Pui-In Mak,et al.  A 0.02-to-6GHz SDR balun-LNA using a triple-stage inverter-based amplifier , 2012, 2012 IEEE International Symposium on Circuits and Systems.

[3]  Pierluigi Nuzzo,et al.  A 2-mm$^{2}$ 0.1–5 GHz Software-Defined Radio Receiver in 45-nm Digital CMOS , 2009, IEEE Journal of Solid-State Circuits.

[4]  E. Sanchez-Sinencio,et al.  Using capacitive cross-coupling technique in RF low noise amplifiers and down-conversion mixer design , 2000, Proceedings of the 26th European Solid-State Circuits Conference.

[5]  P. Wambacq,et al.  Low-Area Active-Feedback Low-Noise Amplifier Design in Scaled Digital CMOS , 2008, IEEE Journal of Solid-State Circuits.

[6]  B. Nauta,et al.  Wideband Balun-LNA With Simultaneous Output Balancing, Noise-Canceling and Distortion-Canceling , 2008, IEEE Journal of Solid-State Circuits.

[7]  Yves Rolain,et al.  Nonlinearity Analysis of Analog/RF Circuits Using Combined Multisine and Volterra Analysis , 2007, 2007 Design, Automation & Test in Europe Conference & Exhibition.

[8]  Ahmed Amer,et al.  A Low-Power Wideband CMOS LNA for WiMAX , 2007, IEEE Transactions on Circuits and Systems II: Express Briefs.

[9]  B. Nauta,et al.  Wide-band CMOS low-noise amplifier exploiting thermal noise canceling , 2004, IEEE Journal of Solid-State Circuits.