Recent Advances in Switched-Current Filters

  • John B. Hughes
  • Kenneth W. Moulding

Abstract

Two recent advances in the switched-current filter technique are reported. The first is an improved memory cell which brings enhanced performance while avoiding many of the trade-offs of earlier attempts. The second is an improved integrator structure which has both better performance and lower power dissipation. The techniques are demonstrated in an 8MHz, 80Msample/s 3rd order lowpass elliptic ladder filter implemented in a standard CMOS process. IC measurements confirm performance which competes with the best of switched-capacitor filters.

Keywords

Memory Cell Clock Frequency nMOS Transistor Input Phase Lower Power Dissipation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • John B. Hughes
    • 1
  • Kenneth W. Moulding
    • 1
  1. 1.Philips Research LaboratoriesRedhill, SurreyEngland

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