CMOS current-mode active transformer sigma-delta modulators

A. Tang; F. Yuan; E. Law

doi:10.1109/MWSCAS.2008.4616877

CMOS current-mode active transformer sigma-delta modulators

A. Tang, F. Yuan, E. Law

Toronto Metropolitan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

This paper presents a new current-mode sigma-delta modulator for Blue-tooth base-band applications. The modulator employs a current-mode ADC, a current-mode DAC, and a new active transformer loop filter to provide the desired noise shaping characteristics. The modulator provides the advantages of tunable filter bandwidth and an extremely small silicon area consumption. The modulator has been implemented in TSMC's 0.18μm 1.8V CMOS technology and analyzed using SpectreRF from Cadence Design Systems with BSIM3V3-RF device models. The simulation results have demonstrated that the modulator exhibits a SNR of 65 dB and a dynamic range of 50 dB at a sample rate of 500 M/s and a bandwidth of 5 MHz while occupying 0.0073mm² silicon area.

Original language	English
Title of host publication	2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
Pages	625-628
Number of pages	4
DOIs	https://doi.org/10.1109/MWSCAS.2008.4616877
Publication status	Published - 2008
Externally published	Yes
Event	2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS - Knoxville, TN, United States Duration: 10 Aug 2008 → 13 Aug 2008

Publication series

Name	Midwest Symposium on Circuits and Systems
ISSN (Print)	1548-3746

Conference

Conference	2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS
Country/Territory	United States
City	Knoxville, TN
Period	10/08/08 → 13/08/08

Access to Document

10.1109/MWSCAS.2008.4616877

Cite this

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title = "CMOS current-mode active transformer sigma-delta modulators",

abstract = "This paper presents a new current-mode sigma-delta modulator for Blue-tooth base-band applications. The modulator employs a current-mode ADC, a current-mode DAC, and a new active transformer loop filter to provide the desired noise shaping characteristics. The modulator provides the advantages of tunable filter bandwidth and an extremely small silicon area consumption. The modulator has been implemented in TSMC's 0.18μm 1.8V CMOS technology and analyzed using SpectreRF from Cadence Design Systems with BSIM3V3-RF device models. The simulation results have demonstrated that the modulator exhibits a SNR of 65 dB and a dynamic range of 50 dB at a sample rate of 500 M/s and a bandwidth of 5 MHz while occupying 0.0073mm2 silicon area.",

author = "A. Tang and F. Yuan and E. Law",

year = "2008",

doi = "10.1109/MWSCAS.2008.4616877",

language = "English",

isbn = "9781424421671",

series = "Midwest Symposium on Circuits and Systems",

pages = "625--628",

booktitle = "2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS",

note = "2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS ; Conference date: 10-08-2008 Through 13-08-2008",

}

Tang, A, Yuan, F & Law, E 2008, CMOS current-mode active transformer sigma-delta modulators. in 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS., 4616877, Midwest Symposium on Circuits and Systems, pp. 625-628, 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS, Knoxville, TN, United States, 10/08/08. https://doi.org/10.1109/MWSCAS.2008.4616877

TY - GEN

T1 - CMOS current-mode active transformer sigma-delta modulators

AU - Tang, A.

AU - Yuan, F.

AU - Law, E.

PY - 2008

Y1 - 2008

N2 - This paper presents a new current-mode sigma-delta modulator for Blue-tooth base-band applications. The modulator employs a current-mode ADC, a current-mode DAC, and a new active transformer loop filter to provide the desired noise shaping characteristics. The modulator provides the advantages of tunable filter bandwidth and an extremely small silicon area consumption. The modulator has been implemented in TSMC's 0.18μm 1.8V CMOS technology and analyzed using SpectreRF from Cadence Design Systems with BSIM3V3-RF device models. The simulation results have demonstrated that the modulator exhibits a SNR of 65 dB and a dynamic range of 50 dB at a sample rate of 500 M/s and a bandwidth of 5 MHz while occupying 0.0073mm2 silicon area.

AB - This paper presents a new current-mode sigma-delta modulator for Blue-tooth base-band applications. The modulator employs a current-mode ADC, a current-mode DAC, and a new active transformer loop filter to provide the desired noise shaping characteristics. The modulator provides the advantages of tunable filter bandwidth and an extremely small silicon area consumption. The modulator has been implemented in TSMC's 0.18μm 1.8V CMOS technology and analyzed using SpectreRF from Cadence Design Systems with BSIM3V3-RF device models. The simulation results have demonstrated that the modulator exhibits a SNR of 65 dB and a dynamic range of 50 dB at a sample rate of 500 M/s and a bandwidth of 5 MHz while occupying 0.0073mm2 silicon area.

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DO - 10.1109/MWSCAS.2008.4616877

M3 - Conference contribution

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SN - 9781424421671

T3 - Midwest Symposium on Circuits and Systems

SP - 625

EP - 628

BT - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS

T2 - 2008 IEEE International 51st Midwest Symposium on Circuits and Systems, MWSCAS

Y2 - 10 August 2008 through 13 August 2008

ER -

CMOS current-mode active transformer sigma-delta modulators

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