A multipurpose micropower SC filter

A design strategy for micropower switched-capacitor filters is presented and illustrated with the design of a multipurpose second-order section. The filter, realized in a double-poly 6-/spl mu/m CMOS process, consumes 237 /spl mu/W if it is used as an equalizer (f/SUB c/=90 kHz, -V/SUB DD/=3 V) and...

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Veröffentlicht in:	IEEE journal of solid-state circuits 1984-06, Vol.19 (3), p.343-348
Hauptverfasser:	Degrauwe, M.G.R., Salchli, F.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Band pass filters Circuit properties Circuits Clocks CMOS process Dynamic range Electric, optical and optoelectronic circuits Electronic circuits Electronics Energy consumption Equalizers Exact sciences and technology Frequency filters Power amplifiers Q factor Resonant frequency
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Beschreibung
Zusammenfassung:	A design strategy for micropower switched-capacitor filters is presented and illustrated with the design of a multipurpose second-order section. The filter, realized in a double-poly 6-/spl mu/m CMOS process, consumes 237 /spl mu/W if it is used as an equalizer (f/SUB c/=90 kHz, -V/SUB DD/=3 V) and only 72 /spl mu/W if it is used as a bandpass filter for 8 channels (f/SUB c/=192 kHz, V/SUB DD/=3 V). The dynamic range of the filter is over 60 dB and the total chip area is 3.5 mm/SUP 2/, including bonding pads.
ISSN:	0018-9200 1558-173X
DOI:	10.1109/JSSC.1984.1052148