Current-mode high-accuracy high-precision CMOS amplifiers (Articolo in rivista)

Type
Label
  • Current-mode high-accuracy high-precision CMOS amplifiers (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Falconi, C., Ferri, G., Stornelli, V., De Marcellis, A., Mazzieri, D., D'Amico, A. (2008)
    Current-mode high-accuracy high-precision CMOS amplifiers
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Falconi, C., Ferri, G., Stornelli, V., De Marcellis, A., Mazzieri, D., D'Amico, A. (literal)
Pagina inizio
  • 394 (literal)
Pagina fine
  • 398 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Electrical Engineering, University of Rome Tor Vergata, Rome 00130, Italy Department of Electrical and Information Engineering, University of L'Aquila, Monteluco di Roio - L'Aquila 67100, Italy (literal)
Titolo
  • Current-mode high-accuracy high-precision CMOS amplifiers (literal)
Abstract
  • In low-voltage, deep sub- ¼m analog CMOS circuits, the accuracy and precision can be limited by the finite gain as well as by the input offset and 1/f noise voltages of opamps. Here, we show how to design high-accuracy high-precision CMOS amplifiers by properly applying dynamic element matching to a second-generation current conveyor (CCII); if all of the critical, nominally identical transistor pairs are dynamically matched, the resulting amplifier has low residual input offset and noise voltages. When compared with chopper or traditional dynamic element-matching amplifiers, the proposed approach alleviates the tradeoff between output swing and output resistance and is more robust against the finite opamp gain. Transistor-level simulations confirm theoretical results. (literal)
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