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On the use of Nauta's transconductor in low-frequency CMOS g(m)-C bandpass filters

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Author

Summary, in English

This paper discusses the use of a transconductor, first proposed by Nauta for high frequency applications, in low frequency CMOS g(m) - C bandpass filters. The behavior of the transconductor is examined in detail, showing that the robust implementation of higher-order low-voltage filters is possible for center frequencies in the lower megahertz region. The experimental results are presented of the realization of two prototypes, a 0.6-mum CMOS 18th-order real bandpass filter and a 0.35-mum CMOS 7th-order complex (14th-order bandpass) filter, both with a center frequency of 3 MHz and a passband of 1 MHz. These filters comply with the specifications for the channel-select stage of the Bluetooth short-range radio receiver.

Publishing year

2002

Language

English

Pages

114-124

Publication/Series

IEEE Journal of Solid-State Circuits

Volume

37

Issue

2

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • polyphase
  • filters
  • non-quasi-static phenomena
  • non-quasi-static MOS models
  • g(m)-C filters
  • complex filters
  • bandpass filters
  • CMOS

Status

Published

ISBN/ISSN/Other

  • ISSN: 0018-9200