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
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
Country/TerritoryTaiwan
CityTaipei
Period02-08-0602-08-08

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'A 0.8 V switched-opamp bandpass ΔΣ modulator using a two-path architecture'. Together they form a unique fingerprint.

Cite this