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

Shinichi Hori, Noriaki Matsuno, Tadashi Maeda, Hikaru Hida

Research output: Contribution to journalArticle

13 Citations (Scopus)


We propose a transconductor capable of providing a wide continuous-tuning-range filter applicable to Bluetooth, W-CDMA, LTE, and IEEE 802.11a/b/g W-LANs without sacrificing power consumption or die area. The wide tuning range is achieved without the need for any array configuration, using triode-biased input MOSFETs with transconductance that is widely tunable by means of drain bias adjustment. The transconductor also uses an adaptive DC-blocking circuit that suppresses bias current in a high transconductance mode, which results in minimizing transconductor power consumption.

Original languageEnglish
Article number6547713
Pages (from-to)37-47
Number of pages11
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Issue number1
Publication statusPublished - 2014 Jan
Externally publishedYes



  • Active filters
  • CMOS integrated circuits
  • transconductor
  • wireless LAN

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this