A CMOS Low Power 4th-Order Delta-Sigma Modulator with One Reconfigurable Amplifier
Pages 471 - 474
Abstract
This paper describes the 4th-order feedback delta-sigma modulator with only one reconfigurable amplifier. The modulator is designed with 180nm CMOS standard process. The measurement results demonstrate the power dissipation of 352uW, peak SNDR of 82.41dB and the ENOB of 13.4bits with an input signal frequency of 250Hz, a sampling frequency of 128 kHz, an input signal bandwidth of 1kHz, and an oversampling rate of 64.
References
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Y. Chae and G. Han, "Low voltage, low power, inverter-based switched-capacitor delta-sigma modulator," IEEE J. Solid-State circuits, vol. 44, no. 2, pp. 458--472, Feb. 2009.
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J. Choi and K. Yoon, "A CMOS Third Order ΔΣ Modulator with Inverter-Based Integrators," IEEE System on a chip Conference, September 2017.
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A.P.Perez, E. Bonzzoni, and F. Maloberti, "A 88-dB DR, 84-dB SNDR very low-power single op-amp third-order ΣΔ modulator," IEEE Journal of Solid-State Circuits, Vol. 47, No. 9, pp. 2017--2118, Sep. 2012.
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A.Pugliese; F.A.Amoroso; G.Cappuccino; G.Cocorullo, "Analysis of op-amp phase margin on SC delta-sigma modulator performances," Microelectronics Journal. Vol. 41. No. 7, pp. 440--446, July. 2010.
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Ali Agah; Katelijin Vleugels; Peter B.Griffin, Mostafa Ronaghi; James D.Plummer; Bruce A. Wooley, "A High-Resolution Low-Power Incremental sigma-delta ADC With Extended Range for Biosensor Arrays", IEEE Journal of Solid-State Circuits, vol.45, no.6, pp. 1099--1110, June. 2010.
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F.Michel and M.S.J.Steyaert, "A 250mV 7.5uW 61dB SNDR SC delta-sigma modulator using near-threshold-voltage-biased inverter amplifiers in 130nm CMOS," IEEE Journal of Solid-State Circuits, vol. 47, no. 3, pp. 709--721, Mar. 2012.
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Yamamoto, K. and Carusone, A.C. "A 1--1-1--1 MASH Delta-Sigma Modulator With Dynamic Comparator-Based OTAs," IEEE Journal of Solid-State Circuits, vol. 47, no. 1, pp. 1866--1883, Aug. 2012.
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Index Terms
- A CMOS Low Power 4th-Order Delta-Sigma Modulator with One Reconfigurable Amplifier
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Published In
May 2018
533 pages
ISBN:9781450357241
DOI:10.1145/3194554
- General Chair:
- Deming Chen,
- Program Chairs:
- Houman Homayoun,
- Baris Taskin
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Published: 30 May 2018
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GLSVLSI '18 Paper Acceptance Rate 48 of 197 submissions, 24%;
Overall Acceptance Rate 312 of 1,156 submissions, 27%
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