A 4.86 mW 15-bit 22.5 MS/s pipelined ADC with 74 dB SNDR in 90 nm CMOS using averaging correlated level shifting technique

Tsung Chih Hung, Tai Haur Kuo

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

This paper proposes an averaging correlated level shifting (Averaging-CLS) technique as a switched-capacitor amplification technique for reducing finite opamp gain error. The Averaging-CLS inverts the finite opamp gain error in the second amplifying phase and then averages it with that in the first amplifying phase. With Averaging-CLS, a high-resolution pipelined ADC can employ medium-accuracy high-efficiency ring amplifiers, which lowers the power consumption and cost of the ADC. Compared with conventional CLS, Averaging-CLS halves the sampling capacitance under the same SNR requirement. A 15-bit pipelined ADC, which operates from a 1.2 V power supply and utilizes an input range of 2.2 V peak-to-peak differential, was realized in a 90 nm CMOS technology. The ADC achieves a 74 dB peak SNDR at 22.5 MS/s conversion rate and consumes 4.86 mW, resulting in the Walden and Schreier Figure-of-Merits of 52.7fJ/conv.-step and 167.6dB, respectively.

原文English
主出版物標題2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面161-164
頁數4
ISBN(電子)9781509037001
DOIs
出版狀態Published - 2017 二月 6
事件12th IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Toyama, Japan
持續時間: 2016 十一月 72016 十一月 9

出版系列

名字2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings

Other

Other12th IEEE Asian Solid-State Circuits Conference, A-SSCC 2016
國家Japan
城市Toyama
期間16-11-0716-11-09

    指紋

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Hardware and Architecture

引用此

Hung, T. C., & Kuo, T. H. (2017). A 4.86 mW 15-bit 22.5 MS/s pipelined ADC with 74 dB SNDR in 90 nm CMOS using averaging correlated level shifting technique. 於 2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings (頁 161-164). [7844160] (2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASSCC.2016.7844160