A 3rd Order Low Power SI Sigma-Delta A/D Converter for Voice-Band Applications

Ivan Herald Holger Jørgensen; Gudmundur Bogason

doi:10.1109/ISCAS.1997.608533

A 3rd Order Low Power SI Sigma-Delta A/D Converter for Voice-Band Applications

Ivan Herald Holger Jørgensen
, Gudmundur Bogason

Oticon Danmark AS

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

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Abstract

This paper presents a 3rd order switched current-ΣΔ-modulator. The ΣΔ-modulator operates at a sampling rate of fs=600 kHz and the signal band is fb=5.5 kHz, i.e., an oversampling factor of R=54.5 is used. Multiple input signals are used to reduce the internal signal swings which results in reduced power consumption. The shaping of the noise from the 2nd and 3rd integrator is used to allow the noise power from these integrators to be increased to further save power. The total power consumption is approximately 2.5 mW with a supply voltage of VDD =3.3 V. The maximum SNR is approximately 74.5 dB

Original language	English
Title of host publication	Proc. 1997 IEEE International Symposium on Circuits and Systems
Place of Publication	Piscataway
Publisher	IEEE
Publication date	1997
Pages	69-72
ISBN (Print)	0-7803-3583-X
DOIs	https://doi.org/10.1109/ISCAS.1997.608533
Publication status	Published - 1997
Event	1997 IEEE International Symposium on Circuits and Systems - , Hong Kong Duration: 12 Jun 1997 → 12 Jun 1997 https://ieeexplore.ieee.org/xpl/conhome/4816/proceeding

Conference

Conference	1997 IEEE International Symposium on Circuits and Systems
Country/Territory	Hong Kong
Period	12/06/1997 → 12/06/1997
Internet address	https://ieeexplore.ieee.org/xpl/conhome/4816/proceeding

Bibliographical note

Copyright: 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "A 3rd Order Low Power SI Sigma-Delta A/D Converter for Voice-Band Applications",

abstract = "This paper presents a 3rd order switched current-ΣΔ-modulator. The ΣΔ-modulator operates at a sampling rate of fs=600 kHz and the signal band is fb=5.5 kHz, i.e., an oversampling factor of R=54.5 is used. Multiple input signals are used to reduce the internal signal swings which results in reduced power consumption. The shaping of the noise from the 2nd and 3rd integrator is used to allow the noise power from these integrators to be increased to further save power. The total power consumption is approximately 2.5 mW with a supply voltage of VDD =3.3 V. The maximum SNR is approximately 74.5 dB",

author = "J{\o}rgensen, \{Ivan Herald Holger\} and Gudmundur Bogason",

note = "Copyright: 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE; 1997 IEEE International Symposium on Circuits and Systems, ISCAS 1997 ; Conference date: 12-06-1997 Through 12-06-1997",

year = "1997",

doi = "10.1109/ISCAS.1997.608533",

language = "English",

isbn = "0-7803-3583-X",

pages = "69--72",

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AU - Jørgensen, Ivan Herald Holger

AU - Bogason, Gudmundur

N1 - Copyright: 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 1997

Y1 - 1997

N2 - This paper presents a 3rd order switched current-ΣΔ-modulator. The ΣΔ-modulator operates at a sampling rate of fs=600 kHz and the signal band is fb=5.5 kHz, i.e., an oversampling factor of R=54.5 is used. Multiple input signals are used to reduce the internal signal swings which results in reduced power consumption. The shaping of the noise from the 2nd and 3rd integrator is used to allow the noise power from these integrators to be increased to further save power. The total power consumption is approximately 2.5 mW with a supply voltage of VDD =3.3 V. The maximum SNR is approximately 74.5 dB

AB - This paper presents a 3rd order switched current-ΣΔ-modulator. The ΣΔ-modulator operates at a sampling rate of fs=600 kHz and the signal band is fb=5.5 kHz, i.e., an oversampling factor of R=54.5 is used. Multiple input signals are used to reduce the internal signal swings which results in reduced power consumption. The shaping of the noise from the 2nd and 3rd integrator is used to allow the noise power from these integrators to be increased to further save power. The total power consumption is approximately 2.5 mW with a supply voltage of VDD =3.3 V. The maximum SNR is approximately 74.5 dB

U2 - 10.1109/ISCAS.1997.608533

DO - 10.1109/ISCAS.1997.608533

M3 - Article in proceedings

SN - 0-7803-3583-X

SP - 69

EP - 72

BT - Proc. 1997 IEEE International Symposium on Circuits and Systems

PB - IEEE

CY - Piscataway

T2 - 1997 IEEE International Symposium on Circuits and Systems

Y2 - 12 June 1997 through 12 June 1997

ER -

A 3rd Order Low Power SI Sigma-Delta A/D Converter for Voice-Band Applications

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