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Research of segmented 8bit voltage-mode R-2R ladder DAC

  • East China Normal University
  • Shanghai Key Laboratory of Multidimensional Information Processing

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Modeling for voltage-mode R-2R ladder digital to analog converter (DAC) is introduced in this paper. By analyzing the mismatch of resistors in ladder, the DNL and INL calculation expression are obtained. In order to achieve a higher accuracy, segmentation is used in DAC. Five different segmentation methods are compared and 3+5 segmentation structure is chosen to achieve best DNL and INL performance. For post calibration, a code-dependent current consumption expression is derived from the input impedance of R-2R ladder. A 3+5 segmented DAC based on this modeling is implemented in a standard 0.18μm CMOS process. The post simulation results show that DNL and INL are bounded at 0.30 and 0.32LSB.

源语言英语
主期刊名Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015
编辑Junyan Ren, Ting-Ao Tang, Fan Ye, Huihua Yu
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781479984831
DOI
出版状态已出版 - 21 7月 2016
活动11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015 - Chengdu, 中国
期限: 3 11月 20156 11月 2015

出版系列

姓名Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015

会议

会议11th IEEE International Conference on Advanced Semiconductor Integrated Circuits (ASIC), ASICON 2015
国家/地区中国
Chengdu
时期3/11/156/11/15

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