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Low Voltage Micropower Log-Domain Filters

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Research Perspectives on Dynamic Translinear and Log-Domain Circuits

Part of the book series: The Springer International Series in Engineering and Computer Science ((SECS,volume 550))

Abstract

A design technique for low-voltage, micropower continuous-time filters implementing CMOS devices operating in weak inversion is presented. The basic building block is the CMOS log-domain integrator. The effects of the MOS device nonidealities on the integrator are investigated and verified by HSPICE simulations. A 5th-order Chebyshev lowpass ladder filter was designed and simulated. The filter operates with low supply voltage of 1.5 V to achieve a cutoff frequency tunable range of 100 Hz-100 kHz, and it has a power dissipation of 254 nW/ pole at the cutoff frequency of 100 kHz. The filter was laid out using the 0.35-µm mixed-mode polycide CMOS technology and occupies a die area of 0.04 mm2 without the i/o pads

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Authors and Affiliations

  1. Electrical and Computer Engineering Department, DalTech, Dalhousie University, P. O. Bar 1000, Halifax, Nova Scotia, B3J 2X4, Canada

    Ezz I. El-Masry & Jie Wu

Authors
  1. Ezz I. El-Masry
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  2. Jie Wu
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Editor information

Editors and Affiliations

  1. Faculty of Information Technology and Systems, Delft University of Technology, Delft, The Netherlands

    Wouter A. Serdijn

  2. Philips Research Laboratories, Eindhoven, The Netherlands

    Jan Mulder

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© 2000 Springer Science+Business Media New York

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El-Masry, E.I., Wu, J. (2000). Low Voltage Micropower Log-Domain Filters. In: Serdijn, W.A., Mulder, J. (eds) Research Perspectives on Dynamic Translinear and Log-Domain Circuits. The Springer International Series in Engineering and Computer Science, vol 550. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6414-7_8

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  • DOI: https://doi.org/10.1007/978-1-4757-6414-7_8

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4419-4973-8

  • Online ISBN: 978-1-4757-6414-7

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