Browse > Article
http://dx.doi.org/10.5573/ieek.2013.50.4.043

Design of Low-Power 3rd-order Delta-Sigma Modulator  

In, Byoung Wha (Dep. of Electronic and Computer Engineering, Hanyang University)
Im, Saemin (Dep. of Electronic and Computer Engineering, Hanyang University)
Park, Sang-Gyu (Dept. of Electronic Engineering, Hanyang University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.4, 2013 , pp. 43-51 More about this Journal
Abstract
This paper presents a design and implementation of a low power switched-capacitor 3rd-order delta-sigma modulator for a digital hearing-aid application. The power consumption is reduced by minimizing the output swing of integrators through optimizing the coefficients of modulator architecture and using class-AB output operational amplifiers. The modulator was implemented in a 130nm CMOS technology, and measured to have 79dB of SNR(Signal-to-Noise Ratio) in the signal bandwidth between 100Hz and 10kHz with an oversampling ratio of 160. The power consumption was $60{\mu}W$ from 1.2V power supply and the modulator core occupied $0.53mm{\times}0.53mm$.
Keywords
delta-sigma modulator; analog-to-digital converter; switched-capacitor; class-AB op-amp;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 C. Enz, G. C. Temes, Circuit techniques for reducing the effects of Op-amp imperfections: Autozeroing, Correlated Double Sampling, and Chopper Stabilization, Proc. IEEE, Vol. 84, pp. 1584-1614, 1996.   DOI   ScienceOn
2 A. M. Engebretson "Benefits of digital hearing aids" IEEE Engineering in Medicine and Biology Mag., Vol. 13, pp. 238-248, Apr./May 1994.   DOI   ScienceOn
3 K. A. Mullins "Design of a digital hearing aid" Northcon/96, pp. 281-284, Seatle, USA, Nov. 1996.
4 F. Maloberti, "Data Converters", Springer, 2007.
5 L. Yao, M. S. J. Steyaert, W. Sansen, "A 1V 140uW 88dB Audio Sigma-Delta Modulator in 90nm CMOS" IEEE J. of Solid-State Circuits, Vol. 39, no. 11, pp. 1809-1818, Nov. 2004.   DOI   ScienceOn
6 T. A. Ricketts, A. B. Dittberner, E. E. Johnson, "High-frequency amplification and sound quality in listeners with normal through moderate hearing loss", J. of Speech, Language, and Hearing Research, Vol. 51, no. 1, pp. 160-172, Feb. 2008.   DOI   ScienceOn
7 P. G. Stelmachowicz, A. L. Pittman, B. M. Hoover, D. E. Lewis, M. P. Moeller, "The importance of High-frequency audibility in the speech and language development of children with hearing loss", Arch Otolaryngol Head Neck Surg, Vol. 130, no. 5, pp. 556-562, May 2004.   DOI   ScienceOn
8 R. Schreier, G. C. Temes, Understanding Delta- Sigma Data Converters, Wiley-IEEE Press, pp. 115-120, 2005.
9 Siemens, Siemens Hearing Instruments Product Portfolios - Fall/Winter 2012/13
10 J. M. de la Rosa "Sigma-delta modulators: tutorial overview, design guide, and state-of-the-art survey" IEEE Transactions on Circuits and Systems I, vol. 58, no. 1, pp. 1-21, 2011.   DOI   ScienceOn
11 E. Fogleman, I. Galton, "A dynamic element matching technique for reduced-distortion multibit quantization in delta-sigma ADCs" IEEE Tran. on Circuits and Systems II, Vol. 48, no. 2, pp. 158-170, 2001.   DOI   ScienceOn
12 김동균, 조성익 "개선된 DWA 구조를 갖는 3차 3-비트 SC Sigma-Delta Modulator" 전자공학회 논문지, 제48권 SD편, 제5호, 18-24쪽, 2011년 5월   과학기술학회마을
13 R. Hogervorst, J. P. Tero, R. G. H. Eschauzier, J. H. Huijsing, "A compact CMOS 3-V rail-to-rail input/output operational amplifiers for VLSI cell libraries," IEEE J. Solid-State Circuits, Vol. 29, no. 12, pp. 1505-1513, 1994.   DOI   ScienceOn
14 Klass Bult, Govert J. G. M. Geelen, "A fast-settling CMOS Op amp for SC circuits with 90-dB DC gain" IEEE J. of Solid-State Circuits, Vol. 25, no. 6, pp. 1379-1384, 1990.   DOI   ScienceOn
15 O. Choksi, L. R. Carley "Analysis of switched -capacitor common-mode feedback circuit," IEEE Tran. on Circuits and Systems II, Vol. 50, no. 12, pp. 906-917, 2003.   DOI
16 A. Noman, M. Dessouky, K. Sharaf, "A dual phase SC CMFB circuit for double sampling modulators" 2003 IEEE 46th Midwest Symp. on Circuits and Systems, Vol. 1, pp. 287-290, Cairo, Egypt, Dec 2003.
17 최영길, 노형동, 변산호, 남현석, 노정진 "99db의 DR를 갖는 단일-비트 4차 고성능 델타-시그마 모듈레이터 설계" 전자공학회 논문지, 제44권 SD편, 제2호, 25-33쪽, 2007년 2월   과학기술학회마을