IEICE TRANSACTIONS on Electronics
A High Dynamic Range and Low Power Consumption Audio Delta-Sigma Modulator with Opamp Sharing Technique among Three Integrators
Summary :
A low power and high performance with third order delta-sigma modulator for audio applications, fabricated in a 0.18 µm CMOS process, is presented. The modulator utilizes a third order noise shaping with only one opamp by using an opamp sharing technique. The opamp sharing among three integrator stages is achieved through the optimal operation timing, which makes use of the load capacitance differences between the three integrator stages. The designed modulator achieves 101.1 dB signal-to-noise ratio (A-weighted) and 101.5 dB dynamic range (A-weighted) with 7.5 mW power consumption from a 3.3 V supply. The die area is 1.27 mm2. The fabricated delta-sigma modulator achieves the highest figure-of-merit among published high performance low power audio delta-sigma modulators.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E95-C No.8 pp.1427-1433
- Publication Date
- 2012/08/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E95.C.1427
- Type of Manuscript
- PAPER
- Category
- Electronic Circuits
Authors
Keyword
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Daisuke KANEMOTO, Toru IDO, Kenji TANIGUCHI, "A High Dynamic Range and Low Power Consumption Audio Delta-Sigma Modulator with Opamp Sharing Technique among Three Integrators" in IEICE TRANSACTIONS on Electronics,
vol. E95-C, no. 8, pp. 1427-1433, August 2012, doi: 10.1587/transele.E95.C.1427.
Abstract: A low power and high performance with third order delta-sigma modulator for audio applications, fabricated in a 0.18 µm CMOS process, is presented. The modulator utilizes a third order noise shaping with only one opamp by using an opamp sharing technique. The opamp sharing among three integrator stages is achieved through the optimal operation timing, which makes use of the load capacitance differences between the three integrator stages. The designed modulator achieves 101.1 dB signal-to-noise ratio (A-weighted) and 101.5 dB dynamic range (A-weighted) with 7.5 mW power consumption from a 3.3 V supply. The die area is 1.27 mm2. The fabricated delta-sigma modulator achieves the highest figure-of-merit among published high performance low power audio delta-sigma modulators.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.1427/_p
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@ARTICLE{e95-c_8_1427,
author={Daisuke KANEMOTO, Toru IDO, Kenji TANIGUCHI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A High Dynamic Range and Low Power Consumption Audio Delta-Sigma Modulator with Opamp Sharing Technique among Three Integrators},
year={2012},
volume={E95-C},
number={8},
pages={1427-1433},
abstract={A low power and high performance with third order delta-sigma modulator for audio applications, fabricated in a 0.18 µm CMOS process, is presented. The modulator utilizes a third order noise shaping with only one opamp by using an opamp sharing technique. The opamp sharing among three integrator stages is achieved through the optimal operation timing, which makes use of the load capacitance differences between the three integrator stages. The designed modulator achieves 101.1 dB signal-to-noise ratio (A-weighted) and 101.5 dB dynamic range (A-weighted) with 7.5 mW power consumption from a 3.3 V supply. The die area is 1.27 mm2. The fabricated delta-sigma modulator achieves the highest figure-of-merit among published high performance low power audio delta-sigma modulators.},
keywords={},
doi={10.1587/transele.E95.C.1427},
ISSN={1745-1353},
month={August},}
Copy
TY - JOUR
TI - A High Dynamic Range and Low Power Consumption Audio Delta-Sigma Modulator with Opamp Sharing Technique among Three Integrators
T2 - IEICE TRANSACTIONS on Electronics
SP - 1427
EP - 1433
AU - Daisuke KANEMOTO
AU - Toru IDO
AU - Kenji TANIGUCHI
PY - 2012
DO - 10.1587/transele.E95.C.1427
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2012
AB - A low power and high performance with third order delta-sigma modulator for audio applications, fabricated in a 0.18 µm CMOS process, is presented. The modulator utilizes a third order noise shaping with only one opamp by using an opamp sharing technique. The opamp sharing among three integrator stages is achieved through the optimal operation timing, which makes use of the load capacitance differences between the three integrator stages. The designed modulator achieves 101.1 dB signal-to-noise ratio (A-weighted) and 101.5 dB dynamic range (A-weighted) with 7.5 mW power consumption from a 3.3 V supply. The die area is 1.27 mm2. The fabricated delta-sigma modulator achieves the highest figure-of-merit among published high performance low power audio delta-sigma modulators.
ER -
English
