Low-power widely tunable Gm-C filter with an adaptive DC-blocking, triode-biased MOSFET transconductor

Shinichi Hori, Tadashi Maeda, Noriaki Matsuno, Hikaru Hida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

42 Citations (Scopus)

Abstract

We propose a new transconductor to achieve a wide continuous-tuning-range filter applicable to IEEE802.11a/b/g W-LANs, W-CDMA, and Bluetooth, without sacrificing power consumption. The wide tuning range is achieved by employing triode-biased input MOSFETs, whose transconductance is widely tuned with drain bias. The transconductor also employs an adaptive DC-blocking circuit that suppresses an idle current in high transconductance mode, resulting in minimizing the power consumption of the transconductor. A 4th-order butterworth low-pass filter using this new transconductor exhibits a cutoff frequency tuning range of 0.5-12 MHz with power consumption of 1.1 - 4.7 mW, The tuning range is 5 times wider than other works with low power consumption.

Original languageEnglish
Title of host publicationESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference
EditorsM. Steyaert, C.L. Claeys
Pages99-102
Number of pages4
Publication statusPublished - 2004 Dec 1
EventESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference - Leuven, Belgium
Duration: 2004 Sep 212004 Sep 23

Publication series

NameESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference

Other

OtherESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference
CountryBelgium
CityLeuven
Period04/9/2104/9/23

ASJC Scopus subject areas

  • Engineering(all)

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    Hori, S., Maeda, T., Matsuno, N., & Hida, H. (2004). Low-power widely tunable Gm-C filter with an adaptive DC-blocking, triode-biased MOSFET transconductor. In M. Steyaert, & C. L. Claeys (Eds.), ESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference (pp. 99-102). (ESSCIRC 2004 - Proceedings of the 30th European Solid-State Circuits Conference).