CMOS single-ended-to-differential low-noise amplifier

  • Authors:

  • Tomás Carrasco Carrillo;José Gabriel Macias-Montero;Aitor Osorio Martí;Javier Sieiro Córdoba;José María Lopez-Villegas

  • Affiliations:

  • Department of Electronics, University of Barcelona, C/Martí i Franqués 1, 08028 Barcelona, Spain;Department of Electronics, University of Barcelona, C/Martí i Franqués 1, 08028 Barcelona, Spain;Department of Electronics, University of Barcelona, C/Martí i Franqués 1, 08028 Barcelona, Spain;Department of Electronics, University of Barcelona, C/Martí i Franqués 1, 08028 Barcelona, Spain;Department of Electronics, University of Barcelona, C/Martí i Franqués 1, 08028 Barcelona, Spain

  • Venue:
  • Integration, the VLSI Journal
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this work, a low-power single-ended-to-differential low-noise amplifier (LNA) is reported. The circuit has been designed and optimized to be included in an IEEE 802.15.4 standard receiver. In order to minimize power consumption, active loads and currents mirrors have been replaced by optimized inductors and transformers. Moreover, an exhaustive study of the mixed-mode parameters has been carried out, enabling the definition of single-ended figures of merits in terms of mixed-mode S-parameters. The LNA has been implemented using a 0.35@mm RFCMOS technology. Performances are a noise figure of 4.3dB, a power gain of 21dB, and a phase balance of 180+/-1^o. Regarding non-linear behaviour, the obtained 1dB-compression point obtained is -9.5dBm while intermodulation intercept point is -3dBm, dissipating 6mA from 1.5V supply voltage.