Design of low voltage transconductor for fully differential Gm-C filter

Seok Woo Choi; Sun Hong Kim; Chang Hun Yun

Design of low voltage transconductor for fully differential Gm-C filter

Seok Woo Choi
, Sun Hong Kim
, Chang Hun Yun

Department of Electrical Engineering

Research output: Contribution to journal › Journal article › peer-review

Abstract

A fully differential transconductor using the series composite transistor is proposed. Simulation results show that THD is less than 1.2% for the differential input signal of up to 1.5V_P-P when the input signal frequency is 10MHz. The proposed transconductor is used to design a third-order elliptic Gm-C lowpass filter with 138kHz cutoff frequency for ADSL Tx filter. The design procedure is based on signal flow graph(SFG) of a doubly-terminated LC ladder filter by means of fully differential transconductors and capacitors. The filter is fabricated and measured with a 0.35μm CMOS process.

Original language	English
Pages (from-to)	424-427
Number of pages	4
Journal	Transactions of the Korean Institute of Electrical Engineers
Volume	56
Issue number	2
State	Published - 2007

Keywords

Composite transistor
Elliptic
Gm-C filter
SFG
Transconductor

Cite this

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title = "Design of low voltage transconductor for fully differential Gm-C filter",

abstract = "A fully differential transconductor using the series composite transistor is proposed. Simulation results show that THD is less than 1.2\% for the differential input signal of up to 1.5VP-P when the input signal frequency is 10MHz. The proposed transconductor is used to design a third-order elliptic Gm-C lowpass filter with 138kHz cutoff frequency for ADSL Tx filter. The design procedure is based on signal flow graph(SFG) of a doubly-terminated LC ladder filter by means of fully differential transconductors and capacitors. The filter is fabricated and measured with a 0.35μm CMOS process.",

keywords = "Composite transistor, Elliptic, Gm-C filter, SFG, Transconductor",

author = "Choi, \{Seok Woo\} and Kim, \{Sun Hong\} and Yun, \{Chang Hun\}",

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T1 - Design of low voltage transconductor for fully differential Gm-C filter

AU - Choi, Seok Woo

AU - Kim, Sun Hong

AU - Yun, Chang Hun

PY - 2007

Y1 - 2007

N2 - A fully differential transconductor using the series composite transistor is proposed. Simulation results show that THD is less than 1.2% for the differential input signal of up to 1.5VP-P when the input signal frequency is 10MHz. The proposed transconductor is used to design a third-order elliptic Gm-C lowpass filter with 138kHz cutoff frequency for ADSL Tx filter. The design procedure is based on signal flow graph(SFG) of a doubly-terminated LC ladder filter by means of fully differential transconductors and capacitors. The filter is fabricated and measured with a 0.35μm CMOS process.

AB - A fully differential transconductor using the series composite transistor is proposed. Simulation results show that THD is less than 1.2% for the differential input signal of up to 1.5VP-P when the input signal frequency is 10MHz. The proposed transconductor is used to design a third-order elliptic Gm-C lowpass filter with 138kHz cutoff frequency for ADSL Tx filter. The design procedure is based on signal flow graph(SFG) of a doubly-terminated LC ladder filter by means of fully differential transconductors and capacitors. The filter is fabricated and measured with a 0.35μm CMOS process.

KW - Composite transistor

KW - Elliptic

KW - Gm-C filter

KW - SFG

KW - Transconductor

UR - https://www.scopus.com/pages/publications/35548971616

M3 - Journal article

AN - SCOPUS:35548971616

SN - 1975-8359

VL - 56

SP - 424

EP - 427

JO - Transactions of the Korean Institute of Electrical Engineers

JF - Transactions of the Korean Institute of Electrical Engineers

IS - 2

ER -

Design of low voltage transconductor for fully differential Gm-C filter

Abstract

Keywords

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