Design of Precise Gain GmC-leapfrog Filters

Design of Precise Gain GmC-leapfrog Filters

This paper describes the analysis and predistortion of a precise gain GmC-leapfrog filter. A 1.2-V 240-MHz fifth-order continuous-time low-pass GmC-filter is used as a design example. A method of mapping the transconductor losses is presented. Furthermore, it is proposed that the load and source res...

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Bibliographische Detailangaben
Hauptverfasser: Kaltiokallio, Mikko, Lindfors, Saska, Saari, Ville, Ryynanen, Jussi
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Active filters
Bandwidth
Baseband
CMOS process
Equations
Frequency response
Passive filters
Predistortion
Prototypes
Resistors
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Beschreibung
Zusammenfassung:This paper describes the analysis and predistortion of a precise gain GmC-leapfrog filter. A 1.2-V 240-MHz fifth-order continuous-time low-pass GmC-filter is used as a design example. A method of mapping the transconductor losses is presented. Furthermore, it is proposed that the load and source resistors can be removed from the filter prototype to relax the trade-offs in the design of precise gain filters. In addition, the effects of the Miller-capacitor are studied. An accurate predistortion result can be achieved with the techniques discussed in this paper.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2007.378445