We present a compact Gm-C biquadratic cell with fully differential input/single-ended output for continuous time low pass filtering and channel bandwidth selection in integrated sensor interfaces. Transconductors with input MOSFETs operating in triode region allow the filter to operate at very low cut-off frequencies without excessive area occupation. The noise versus input range issue is originally addressed in order to provide useful design formulas. Electrical simulations successfully demonstrate the application of the filter as a cascade stage after a chopper modulated amplifier.

A compact CMOS Gm-C Biquadratic Cell for Chopper Amplifier Band Limiting

DEI M;BRUSCHI, PAOLO;PIOTTO, MASSIMO
2009-01-01

Abstract

We present a compact Gm-C biquadratic cell with fully differential input/single-ended output for continuous time low pass filtering and channel bandwidth selection in integrated sensor interfaces. Transconductors with input MOSFETs operating in triode region allow the filter to operate at very low cut-off frequencies without excessive area occupation. The noise versus input range issue is originally addressed in order to provide useful design formulas. Electrical simulations successfully demonstrate the application of the filter as a cascade stage after a chopper modulated amplifier.
2009
9781424437320
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/130611
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 0
social impact