A voltage scaling 0.25-1.8 v delta-sigma modulator with inverter-opamp self-configuring amplifier

Kentaro Yoshioka, Yosuke Toyama, Teruo Jyo, Hiroki Ishikuro

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A 2nd order discrete time (DT) ΔΣ modulator with very wide supply voltage range of 0.25-1.8 V is presented. An inverter-opamp self-configuring amplifier (IOSA) is proposed with sufficient gain through sub-threshold to strong inversion region. The amplifier senses the supply voltage and automatically configures either to operate as an inverter or an opamp. The prototype ADC fabricated in 180nm CMOS achieved SNDR of 53dB at a supply voltage of 0.3V and a best FoM of 0.09 pJ/step. At 1.8 V supply the modulator achieves SNDR 61dB and operates down to 0.25V.

本文言語English
ホスト出版物のタイトル2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
ページ809-812
ページ数4
DOI
出版ステータスPublished - 2013
イベント2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
継続期間: 2013 5 192013 5 23

出版物シリーズ

名前Proceedings - IEEE International Symposium on Circuits and Systems
ISSN(印刷版)0271-4310

Other

Other2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
国/地域China
CityBeijing
Period13/5/1913/5/23

ASJC Scopus subject areas

  • 電子工学および電気工学

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