A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture

Hsiang Hui Chang, Shang Ping Chen, Kuang-Wei Cheng, Shen Iuan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, a very low-voltage fourth-order bandpass delta-sigma modulator with a two-path architecture is presented. Using the modified switched opamp technique enables the modulator to operate at only 0.8 V supply voltage without any voltage multiplier or bootstrapping switch. Realized in a 0.25 μm 1P5M standard CMOS process, the prototype modulator exhibits a signal-to-noise-plus-distortion ratio (SNDR) of 60.6 db and a dynamic range (DR) of 68 db in a 30 kHz signal bandwidth centered at 1.25 MHz while consuming 2.5 mW and occupying an active area of 2.11 mm2.

Original languageEnglish
Title of host publication2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)0780373634, 9780780373631
DOIs
Publication statusPublished - 2002 Jan 1
Event3rd IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Taipei, Taiwan
Duration: 2002 Aug 62002 Aug 8

Publication series

Name2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings

Other

Other3rd IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002
CountryTaiwan
CityTaipei
Period02-08-0602-08-08

Fingerprint

Operational amplifiers
Modulators
Electric potential
Switches
Bandwidth

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Chang, H. H., Chen, S. P., Cheng, K-W., & Liu, S. I. (2002). A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture. In 2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings (pp. 1-4). [1031517] (2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APASIC.2002.1031517
Chang, Hsiang Hui ; Chen, Shang Ping ; Cheng, Kuang-Wei ; Liu, Shen Iuan. / A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture. 2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2002. pp. 1-4 (2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings).
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Chang, HH, Chen, SP, Cheng, K-W & Liu, SI 2002, A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture. in 2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings., 1031517, 2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 1-4, 3rd IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002, Taipei, Taiwan, 02-08-06. https://doi.org/10.1109/APASIC.2002.1031517

A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture. / Chang, Hsiang Hui; Chen, Shang Ping; Cheng, Kuang-Wei; Liu, Shen Iuan.

2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2002. p. 1-4 1031517 (2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - In this paper, a very low-voltage fourth-order bandpass delta-sigma modulator with a two-path architecture is presented. Using the modified switched opamp technique enables the modulator to operate at only 0.8 V supply voltage without any voltage multiplier or bootstrapping switch. Realized in a 0.25 μm 1P5M standard CMOS process, the prototype modulator exhibits a signal-to-noise-plus-distortion ratio (SNDR) of 60.6 db and a dynamic range (DR) of 68 db in a 30 kHz signal bandwidth centered at 1.25 MHz while consuming 2.5 mW and occupying an active area of 2.11 mm2.

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Chang HH, Chen SP, Cheng K-W, Liu SI. A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture. In 2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2002. p. 1-4. 1031517. (2002 IEEE Asia-Pacific Conference on ASIC, AP-ASIC 2002 - Proceedings). https://doi.org/10.1109/APASIC.2002.1031517