A hybrid delta-sigma modulator with adaptive calibration

Jae Hoon Shim; In Cheol Park; Beomsup Kim

A hybrid delta-sigma modulator with adaptive calibration

Jae Hoon Shim
, In Cheol Park
, Beomsup Kim

School of Electronics Engineering

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

7 Scopus citations

Abstract

High-order delta-sigma ADCs can achieve wide dynamic ranges at a relatively low oversampling ratio. As high-order modulators may cause instability, a new delta-sigma modulator structure employing hybrid integrators and adaptive calibration is proposed. Hybrid integrators do not suffer from saturation, and they can be applied for high-order modulators without stability problems. The proposed structure uses adaptive calibration to mitigate the performance degradation caused by mismatches between analog and digital paths of hybrid integrators. Behavioral simulations of a fourth-order delta-sigma modulator show that the proposed structure can achieve a significant improvement in dynamic range.

Original language	English
Pages (from-to)	I1025-I1028
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	1
State	Published - 2003
Event	Proceedings of the 2003 IEEE International Symposium on Circuits and Systems - Bangkok, Thailand Duration: 25 May 2003 → 28 May 2003

Cite this

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title = "A hybrid delta-sigma modulator with adaptive calibration",

abstract = "High-order delta-sigma ADCs can achieve wide dynamic ranges at a relatively low oversampling ratio. As high-order modulators may cause instability, a new delta-sigma modulator structure employing hybrid integrators and adaptive calibration is proposed. Hybrid integrators do not suffer from saturation, and they can be applied for high-order modulators without stability problems. The proposed structure uses adaptive calibration to mitigate the performance degradation caused by mismatches between analog and digital paths of hybrid integrators. Behavioral simulations of a fourth-order delta-sigma modulator show that the proposed structure can achieve a significant improvement in dynamic range.",

author = "Shim, \{Jae Hoon\} and Park, \{In Cheol\} and Beomsup Kim",

year = "2003",

language = "English",

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pages = "I1025--I1028",

journal = "Proceedings - IEEE International Symposium on Circuits and Systems",

issn = "0271-4310",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "Proceedings of the 2003 IEEE International Symposium on Circuits and Systems ; Conference date: 25-05-2003 Through 28-05-2003",

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TY - JOUR

T1 - A hybrid delta-sigma modulator with adaptive calibration

AU - Shim, Jae Hoon

AU - Park, In Cheol

AU - Kim, Beomsup

PY - 2003

Y1 - 2003

N2 - High-order delta-sigma ADCs can achieve wide dynamic ranges at a relatively low oversampling ratio. As high-order modulators may cause instability, a new delta-sigma modulator structure employing hybrid integrators and adaptive calibration is proposed. Hybrid integrators do not suffer from saturation, and they can be applied for high-order modulators without stability problems. The proposed structure uses adaptive calibration to mitigate the performance degradation caused by mismatches between analog and digital paths of hybrid integrators. Behavioral simulations of a fourth-order delta-sigma modulator show that the proposed structure can achieve a significant improvement in dynamic range.

AB - High-order delta-sigma ADCs can achieve wide dynamic ranges at a relatively low oversampling ratio. As high-order modulators may cause instability, a new delta-sigma modulator structure employing hybrid integrators and adaptive calibration is proposed. Hybrid integrators do not suffer from saturation, and they can be applied for high-order modulators without stability problems. The proposed structure uses adaptive calibration to mitigate the performance degradation caused by mismatches between analog and digital paths of hybrid integrators. Behavioral simulations of a fourth-order delta-sigma modulator show that the proposed structure can achieve a significant improvement in dynamic range.

UR - https://www.scopus.com/pages/publications/0038489081

M3 - Conference article

AN - SCOPUS:0038489081

SN - 0271-4310

VL - 1

SP - I1025-I1028

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

T2 - Proceedings of the 2003 IEEE International Symposium on Circuits and Systems

Y2 - 25 May 2003 through 28 May 2003

ER -

A hybrid delta-sigma modulator with adaptive calibration

Abstract

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