Improving the glitch noise of Δ∑ D/A converter using the RTZ waveform

Takahiro Ihara; Eri Ioka; Yasuyuki Matsuya

doi:10.1541/ieejeiss.131.1321

Improving the glitch noise of Δ∑ D/A converter using the RTZ waveform

Takahiro Ihara, Eri Ioka, Yasuyuki Matsuya

Research output: Contribution to journal › Article › peer-review

Abstract

This paper discusses the analytical result of the glitch noise improvement in the multi-bit delta sigma D/A converter with Data-Weighted-Averaging (DWA). The DWA-DAC is effective for the improvement measure of SNR deterioration with element deviation. However, the DWA-DAC has the problem that the accuracy decreases by the glitch noise. The glitch noise occurs by the timing skew. So we propose to use RTZ waveform (fixed code) that is appropriate for the DWA-DAC. In this result, we obtain that the accuracy is able to improve 10dB when the timing-skew is 100ps.

Original language	English
Pages (from-to)	1321-1326
Number of pages	6
Journal	IEEJ Transactions on Electronics, Information and Systems
Volume	131
Issue number	7
DOIs	https://doi.org/10.1541/ieejeiss.131.1321
Publication status	Published - 2011
Externally published	Yes

Keywords

D/A converter
DWA
Glitch
RTZ waveform
Timing skew
Δ∑ modulator

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1541/ieejeiss.131.1321

Cite this

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title = "Improving the glitch noise of Δ∑ D/A converter using the RTZ waveform",

abstract = "This paper discusses the analytical result of the glitch noise improvement in the multi-bit delta sigma D/A converter with Data-Weighted-Averaging (DWA). The DWA-DAC is effective for the improvement measure of SNR deterioration with element deviation. However, the DWA-DAC has the problem that the accuracy decreases by the glitch noise. The glitch noise occurs by the timing skew. So we propose to use RTZ waveform (fixed code) that is appropriate for the DWA-DAC. In this result, we obtain that the accuracy is able to improve 10dB when the timing-skew is 100ps.",

keywords = "D/A converter, DWA, Glitch, RTZ waveform, Timing skew, Δ∑ modulator",

author = "Takahiro Ihara and Eri Ioka and Yasuyuki Matsuya",

year = "2011",

doi = "10.1541/ieejeiss.131.1321",

language = "English",

volume = "131",

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publisher = "The Institute of Electrical Engineers of Japan",

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TY - JOUR

T1 - Improving the glitch noise of Δ∑ D/A converter using the RTZ waveform

AU - Ihara, Takahiro

AU - Ioka, Eri

AU - Matsuya, Yasuyuki

PY - 2011

Y1 - 2011

N2 - This paper discusses the analytical result of the glitch noise improvement in the multi-bit delta sigma D/A converter with Data-Weighted-Averaging (DWA). The DWA-DAC is effective for the improvement measure of SNR deterioration with element deviation. However, the DWA-DAC has the problem that the accuracy decreases by the glitch noise. The glitch noise occurs by the timing skew. So we propose to use RTZ waveform (fixed code) that is appropriate for the DWA-DAC. In this result, we obtain that the accuracy is able to improve 10dB when the timing-skew is 100ps.

AB - This paper discusses the analytical result of the glitch noise improvement in the multi-bit delta sigma D/A converter with Data-Weighted-Averaging (DWA). The DWA-DAC is effective for the improvement measure of SNR deterioration with element deviation. However, the DWA-DAC has the problem that the accuracy decreases by the glitch noise. The glitch noise occurs by the timing skew. So we propose to use RTZ waveform (fixed code) that is appropriate for the DWA-DAC. In this result, we obtain that the accuracy is able to improve 10dB when the timing-skew is 100ps.

KW - D/A converter

KW - DWA

KW - Glitch

KW - RTZ waveform

KW - Timing skew

KW - Δ∑ modulator

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JF - IEEJ Transactions on Electronics, Information and Systems

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Improving the glitch noise of Δ∑ D/A converter using the RTZ waveform

Abstract

Keywords

ASJC Scopus subject areas

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