Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloAn automatic procedure for the synthesis and optimization of very low-frequency Gm-C integrators
Anno di pubblicazione2012
FormatoCartaceo
Autore/iFederico Butti; Paolo Bruschi ; Massimo Piotto
Affiliazioni autoriDipartimento di Ingegneria dell'Informazione, via G. Caruso 16, 56122 Pisa, Italy Dipartimento di Ingegneria dell'Informazione, via G. Caruso 16, 56122 Pisa, Italy IEIIT Pisa-CNR, via G. Caruso 16, 56122 Pisa, Italy
Autori CNR e affiliazioni
  • MASSIMO PIOTTO
Lingua/e
  • inglese
AbstractFully integrated low frequency filters are critical cells that should be carefully designed in order to avoid excessive area occupation. In this work we propose an automatic procedure capable of optimizing the design of Gm-C integrators, which constitute the basis of a wide class of Gm-C filters. The optimization target is minimizing the cell area with constraints on input range and low frequency noise. Lower and upper bounds can be fixed to most quantities and design parameters in order to avoid solutions that are not compatible with the physical limitations of the process. The program has been developed within the MATLAB TM platform, exploiting the optimization toolbox. The effect of several important design parameters on the optimization of low frequency integrators has been investigated using the proposed routine. The strong interaction between noise and low frequency constraints has been demonstrated, showing the impressive impact of strict noise specifications on the occupied area. The actual effectiveness of parameters such as the current division factor or approaches such as flicker noise rejection by means of chopper modulation has been investigated. Examples of integrator synthesis, performed using the proposed procedure configured with the parameters of a commercial CMOS process, are presented. The consistence between the characteristics of the cells and the initial specifications has been checked using electrical simulations showing a maximum discrepancy with the initial specifications of nearly 80%. A semi-manual method to refine the synthesized cells and improve the accuracy is proposed.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da575
Pagine a584
Pagine totali-
RivistaAnalog integrated circuits and signal processing
Attiva dal 1991
Editore: Kluwer Academic Publishers - Boston
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0925-1030
Titolo chiave: Analog integrated circuits and signal processing
Titolo abbreviato: Analog integr. circuits signal process.
Numero volume della rivista72
Fascicolo della rivista3
DOI10.1007/s10470-011-9718-2
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • Scopus (Codice:2-s2.0-84865129054)
  • ISI Web of Science (WOS) (Codice:000307285700010)
Parole chiaveGm-C integrators,  Low frequency,  Optimization,  Continuous-time filters,  Automatic design
Link (URL, URI)-
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — IEIIT - UOS di Pisa
Moduli CNR
    Progetti Europei-
    Allegati
    • An automatic procedure for the synthesis and optimization of very low-frequency Gm-C integrators

    Dati associati a vecchie tipologie
    I dati associati a vecchie tipologie non sono modificabili, derivano dal cambiamento della tipologia di prodotto e hanno solo valore storico.
    Editore
    • Kluwer Academic Publishers, Boston (Stati Uniti d'America)