A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching

Hong Phuc NINH; Masaya MIYAHARA; Akira MATSUZAWA

doi:10.1587/transele.E95.C.1017

A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching

Hong Phuc NINH, Masaya MIYAHARA, Akira MATSUZAWA

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This paper considers a simple type of Dynamic Element Matching (DEM), Clocked Averaging (CLA) method referred to as one-element-shifting (OES) and its effectiveness for the implementation of high spurious-free dynamic range (SFDR) multi-bit Delta-Sigma modulators (DSMs). Generic DEM techniques are successful at suppressing the mismatch error and increasing the SFDR of data converters. However, they will induce additional glitch energy in most cases. Some recent DEM methods achieve improvements in minimizing glitch energy but sacrificing their effects in harmonic suppression due to mismatches. OES technique discussed in this paper can suppress the effect of glitch while preserving the reduction of element mismatch effects. Hence, this approach achieves better SFDR performance over the other published DEM methods. With this OES, a 3rd order, 10 MHz bandwidth continuous-time DSM is implemented in 90 nm CMOS process. The measured SFDR attains 83 dB for a 10 MHz bandwidth. The measurement result also shows that OES improves the SFDR by higher than 10 dB.

Publication: IEICE TRANSACTIONS on Electronics Vol.E95-C No.6 pp.1017-1025

Publication Date: 2012/06/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E95.C.1017

Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)

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Hong Phuc NINH, Masaya MIYAHARA, Akira MATSUZAWA, "A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching" in IEICE TRANSACTIONS on Electronics, vol. E95-C, no. 6, pp. 1017-1025, June 2012, doi: 10.1587/transele.E95.C.1017.
Abstract: This paper considers a simple type of Dynamic Element Matching (DEM), Clocked Averaging (CLA) method referred to as one-element-shifting (OES) and its effectiveness for the implementation of high spurious-free dynamic range (SFDR) multi-bit Delta-Sigma modulators (DSMs). Generic DEM techniques are successful at suppressing the mismatch error and increasing the SFDR of data converters. However, they will induce additional glitch energy in most cases. Some recent DEM methods achieve improvements in minimizing glitch energy but sacrificing their effects in harmonic suppression due to mismatches. OES technique discussed in this paper can suppress the effect of glitch while preserving the reduction of element mismatch effects. Hence, this approach achieves better SFDR performance over the other published DEM methods. With this OES, a 3rd order, 10 MHz bandwidth continuous-time DSM is implemented in 90 nm CMOS process. The measured SFDR attains 83 dB for a 10 MHz bandwidth. The measurement result also shows that OES improves the SFDR by higher than 10 dB.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.1017/_p

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@ARTICLE{e95-c_6_1017,
author={Hong Phuc NINH, Masaya MIYAHARA, Akira MATSUZAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching},
year={2012},
volume={E95-C},
number={6},
pages={1017-1025},
abstract={This paper considers a simple type of Dynamic Element Matching (DEM), Clocked Averaging (CLA) method referred to as one-element-shifting (OES) and its effectiveness for the implementation of high spurious-free dynamic range (SFDR) multi-bit Delta-Sigma modulators (DSMs). Generic DEM techniques are successful at suppressing the mismatch error and increasing the SFDR of data converters. However, they will induce additional glitch energy in most cases. Some recent DEM methods achieve improvements in minimizing glitch energy but sacrificing their effects in harmonic suppression due to mismatches. OES technique discussed in this paper can suppress the effect of glitch while preserving the reduction of element mismatch effects. Hence, this approach achieves better SFDR performance over the other published DEM methods. With this OES, a 3rd order, 10 MHz bandwidth continuous-time DSM is implemented in 90 nm CMOS process. The measured SFDR attains 83 dB for a 10 MHz bandwidth. The measurement result also shows that OES improves the SFDR by higher than 10 dB.},
keywords={},
doi={10.1587/transele.E95.C.1017},
ISSN={1745-1353},
month={June},}

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TY - JOUR
TI - A 83-dB SFDR 10-MHz Bandwidth Continuous-Time Delta-Sigma Modulator Employing a One-Element-Shifting Dynamic Element Matching
T2 - IEICE TRANSACTIONS on Electronics
SP - 1017
EP - 1025
AU - Hong Phuc NINH
AU - Masaya MIYAHARA
AU - Akira MATSUZAWA
PY - 2012
DO - 10.1587/transele.E95.C.1017
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2012
AB - This paper considers a simple type of Dynamic Element Matching (DEM), Clocked Averaging (CLA) method referred to as one-element-shifting (OES) and its effectiveness for the implementation of high spurious-free dynamic range (SFDR) multi-bit Delta-Sigma modulators (DSMs). Generic DEM techniques are successful at suppressing the mismatch error and increasing the SFDR of data converters. However, they will induce additional glitch energy in most cases. Some recent DEM methods achieve improvements in minimizing glitch energy but sacrificing their effects in harmonic suppression due to mismatches. OES technique discussed in this paper can suppress the effect of glitch while preserving the reduction of element mismatch effects. Hence, this approach achieves better SFDR performance over the other published DEM methods. With this OES, a 3rd order, 10 MHz bandwidth continuous-time DSM is implemented in 90 nm CMOS process. The measured SFDR attains 83 dB for a 10 MHz bandwidth. The measurement result also shows that OES improves the SFDR by higher than 10 dB.
ER -