A Delta-Sigma ADC with Stochastic Quantization

Hirai, Yusaku; Yano, Shinya; Matsuoka, Toshimasa

IPSJ transactions on system LSI design methodology, 2015, 8, 123-130

Number of Access:609（2025-08-14 15:06 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/52087

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Title
A Delta-Sigma ADC with Stochastic Quantization
Creator
CreatorName
Hirai, Yusaku
CreatorName
Yano, Shinya
NRID
1000080324820 1000080324820
ORCID
0000-0003-3876-2679 0000-0003-3876-2679
researchmap permalink
read0068628 read0068628
Scopus Author ID
7402741552 7402741552
CreatorName
Matsuoka, Toshimasa
Subject
ADC
multi-bit delta-sigma modulator
DAC-error correction
mismatch
genetic algorithm
Description
ここに掲載した著作物の利用に関する注意 本著作物の著作権は情報処理学会に帰属します。本著作物は著作権者である情報処理学会の許可のもとに掲載するものです。ご利用に当たっては「著作権法」ならびに「情報処理学会倫理綱領」に従うことをお願いいたします。
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Abstract
An application of the stochastic A/D conversion to multi-bit delta-sigma modulators is considered, and a novel correction technique for D/A converter (DAC) error is proposed. The stochastic A/D conversion can reduce the area of the quantizer and allows large mismatches. The proposed calibration technique corrects DAC errors using a programmable quantizer. The programmable quantizer has a non-linear characteristic that cancels DAC errors. Using this technique, we can decrease the influence of DAC errors without using conventional dynamic element matching. This A/D converter has a non-linear quantization characteristic, so output digital code must be corrected using a programmable encoder. This code correction and setting of the quantization levels are carried out based on calibration data obtained using genetic algorithm.
Publisher
情報処理学会
Information Processing Society of Japan
ジョウホウ ショリ ガッカイ
Source Title
IPSJ transactions on system LSI design methodology
Volume (Issue)
8
Page
123-130
Date of Issued
2015-08
Language
English
Handle URL
https://hdl.handle.net/11094/52087
eISSN
18826687
NCID
AA12394951
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2197/ipsjtsldm.8.123
Access Rights
open access
CopyRight
Copyright © 2015 by the Information Processing Society of Japan
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article