Cell biasing and balancing in E-cell based single-ended log filters

Sergio Callegari; Gianluca Setti

doi:10.1109/ICECS.1998.814903

Cell biasing and balancing in E-cell based single-ended log filters

Sergio Callegari, Gianluca Setti

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Log domain (or instantaneous companding) filtering is a recent appealing paradigm for designing integrable, high-frequency, low-voltage, continuous-time filters. A nonlinear transconductor known as E-cell is the single building block needed for realizing filters of any complexity. Nevertheless, the problem of biasing all the E-cells at proper DC operating points has not yet been systematically solved. Aim of this contribution is to address this topic and to propose a generally applicable mapping which systematically provides proper bias levels. Furthermore, the proposed mapping balances the E-cell branch currents at the DC operating point, allowing overall improved operation.

Original language	English (US)
Title of host publication	Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	377-380
Number of pages	4
ISBN (Print)	0780350081
DOIs	https://doi.org/10.1109/ICECS.1998.814903
State	Published - Jan 1 1998
Externally published	Yes

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10.1109/ICECS.1998.814903

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title = "Cell biasing and balancing in E-cell based single-ended log filters",

abstract = "Log domain (or instantaneous companding) filtering is a recent appealing paradigm for designing integrable, high-frequency, low-voltage, continuous-time filters. A nonlinear transconductor known as E-cell is the single building block needed for realizing filters of any complexity. Nevertheless, the problem of biasing all the E-cells at proper DC operating points has not yet been systematically solved. Aim of this contribution is to address this topic and to propose a generally applicable mapping which systematically provides proper bias levels. Furthermore, the proposed mapping balances the E-cell branch currents at the DC operating point, allowing overall improved operation.",

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AU - Setti, Gianluca

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Y1 - 1998/1/1

N2 - Log domain (or instantaneous companding) filtering is a recent appealing paradigm for designing integrable, high-frequency, low-voltage, continuous-time filters. A nonlinear transconductor known as E-cell is the single building block needed for realizing filters of any complexity. Nevertheless, the problem of biasing all the E-cells at proper DC operating points has not yet been systematically solved. Aim of this contribution is to address this topic and to propose a generally applicable mapping which systematically provides proper bias levels. Furthermore, the proposed mapping balances the E-cell branch currents at the DC operating point, allowing overall improved operation.

AB - Log domain (or instantaneous companding) filtering is a recent appealing paradigm for designing integrable, high-frequency, low-voltage, continuous-time filters. A nonlinear transconductor known as E-cell is the single building block needed for realizing filters of any complexity. Nevertheless, the problem of biasing all the E-cells at proper DC operating points has not yet been systematically solved. Aim of this contribution is to address this topic and to propose a generally applicable mapping which systematically provides proper bias levels. Furthermore, the proposed mapping balances the E-cell branch currents at the DC operating point, allowing overall improved operation.

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DO - 10.1109/ICECS.1998.814903

M3 - Conference contribution

SN - 0780350081

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EP - 380

BT - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Cell biasing and balancing in E-cell based single-ended log filters

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