Current-Mode LP CMOS Active Filter for Very Low Frequency Applications

Current-Mode LP CMOS Active Filter for Very Low Frequency Applications

A new structure of a current-mode LP active filter in CMOS technology, suitable for applications in very low frequency filters is presented in the paper. On the basis of this structure, particular solution of a sixth-order Bessel filter has been designed and tested by SPICE simulations. The main fea...

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Bibliographische Detailangaben
1. Verfasser: Kulej, T.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Active filters
Band pass filters
Bulk-driven circuits
Charge pumps
Circuits
CMOS technology
Cutoff frequency
Low-frequency circuits
MOSFETs
SPICE
Transconductance
Variable structure systems
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Beschreibung
Zusammenfassung:A new structure of a current-mode LP active filter in CMOS technology, suitable for applications in very low frequency filters is presented in the paper. On the basis of this structure, particular solution of a sixth-order Bessel filter has been designed and tested by SPICE simulations. The main features of this design are; very low cutoff frequency (2.4 Hz), very low dissipation power (9 nW) and low supply voltage (1 V with additional auxiliary supply voltage equal to -1 V).
DOI:10.1109/MIXDES.2007.4286161