A 3rd-order current-mode filter in 0.12 μm CMOS

For software radio applications in system-on-chips, a 3rd-order current-mode Butterworth filter in 120 nm CMOS is realized. This filter is used for reconstruction purposes between a current-steering DAC and a current-mode mixer. Power can be reduced by using a current-mode architecture. The cut-off...

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Veröffentlicht in:Advances in radio science 2008-01, Vol.6, p.201-204
Hauptverfasser: Kolm, R., Zimmermann, H.
Format: Artikel
Sprache:eng
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Zusammenfassung:For software radio applications in system-on-chips, a 3rd-order current-mode Butterworth filter in 120 nm CMOS is realized. This filter is used for reconstruction purposes between a current-steering DAC and a current-mode mixer. Power can be reduced by using a current-mode architecture. The cut-off frequency of this filter is switchable between 1 MHz and 4 MHz, the current consumption is 4.5 mA at VDD=1.5 V, the inband noise density is 100 pA/√Hz and it has a dynamic range up to 65 dB.
ISSN:1684-9973
1684-9965
1684-9973
DOI:10.5194/ars-6-201-2008