A two-capacitor SAR-assisted multi-step incremental ADC with a single amplifier achieving 96.6 dB SNDR over 1.2 kHz BW

Yi Zhang, Chia-Hung Chen, Tao He, Kazuki Sobue, Koichi Hamashita, Gabor C. Temes

研究成果: Conference contribution同行評審

11 引文 斯高帕斯(Scopus)

摘要

This paper presents a two-step incremental ADC (lADC) using extended counting. In the first step, the lADC is configured as a first-order ΔΣ loop with an input feedforward architecture. In the second step, a two-capacitor SAR-assisted extended counting technique enhances the accuracy. A single active integrator is shared in both steps. Fabricated in 0.18-μm CMOS process, the IADC achieves a peak SNR/SNDR/DR of 97.1/96.6/100.2 dB over a 1.2 kHz bandwidth, while dissipating 33.2 μW from a 1.5 V supply. This gives a Schreier FoM of 175.8 dB and Walden FoM of 0.25 pJ/conv.-step, both among the best values.

原文English
主出版物標題38th Annual Custom Integrated Circuits Conference
主出版物子標題A Showcase for Integrated Circuit Design in Silicon Hills, CICC 2017
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781509051915
DOIs
出版狀態Published - 26 7月 2017
事件38th Annual Custom Integrated Circuits Conference, CICC 2017 - Austin, United States
持續時間: 30 4月 20173 5月 2017

出版系列

名字Proceedings of the Custom Integrated Circuits Conference
2017-April
ISSN(列印)0886-5930

Conference

Conference38th Annual Custom Integrated Circuits Conference, CICC 2017
國家/地區United States
城市Austin
期間30/04/173/05/17

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