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

Shinichi Hori; Noriaki Matsuno; Tadashi Maeda; Hikaru Hida

doi:10.1109/TCSI.2013.2268291

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 journal › Article › peer-review

14 Citations (Scopus)

Abstract

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 language	English
Article number	6547713
Pages (from-to)	37-47
Number of pages	11
Journal	IEEE Transactions on Circuits and Systems I: Regular Papers
Volume	61
Issue number	1
DOIs	https://doi.org/10.1109/TCSI.2013.2268291
Publication status	Published - 2014 Jan 1
Externally published	Yes

Keywords

Active filters
CMOS integrated circuits
transconductor
wireless LAN

ASJC Scopus subject areas

Electrical and Electronic Engineering

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AB - 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.

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