Juan Mateus

  • Citations Per Year
Learn More
A simplified voltage reference topology with low power consumption based on MOS transistors in weak inversion operation is presented. A 176 <i>mV</i> @ 27&#176;<i>C</i> output voltage with a quiescent current of 2.7 &#956;<i>A</i> @ 3.3 <i>V</i> and a thermal coefficient of 8.8 &#956;<i>V/&#176;C</i> in the temperature range of [-25; 100] &#176;<i>C</i> had(More)
In this paper a currentxvoltage multiplier with the FVFCS is presented. This wultiplier takes advantage of the very low&#x02013;impedance input node of the FVFCS to sense the current signals. Additionally, uses a two cross&#x02013;coupled differential pairs in order to cancel undesired components in the output current. The simulations are carried out using(More)
Effects of drought – altered seasonality and low rainfall – in net ecosystem carbon exchange of three contrasting Mediterranean ecosystems J. S. Pereira, J. A. Mateus, L. M. Aires, G. Pita, C. Pio, V. Andrade, J. Banza, T. S. David, A. Rodrigues, and J. S. David Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Tapada da Ajuda, 1349-017(More)
  • 1