The true single-port compartor in multiple channel SAR ADC

Yong-Kai Li; Shou-Hao Wang; Yuan-Jun Cen; Ping Yang; Zhi-kai Liao; Niu Yi; Qi Xu

doi:10.1117/12.2615197

15 October 2021 The true single-port compartor in multiple channel SAR ADC

Yong-Kai Li, Shou-Hao Wang, Yuan-Jun Cen, Ping Yang, Zhi-kai Liao, Niu Yi, Qi Xu

Proceedings Volume 11933, 2021 International Conference on Neural Networks, Information and Communication Engineering; 119332K (2021) https://doi.org/10.1117/12.2615197
Event: 2021 International Conference on Neural Networks, Information and Communication Engineering, 2021, Qingdao, China

Abstract

Sometimes, the high-resolution A/D converter needs more ADC cores in one A/D chip. At this time, the area of layout will become the key factor of A/D design alternative. Except layout design, it also needs some special schematic structure to decrease the layout of A/D chip. In SAR A/D convertor, the core units are SAR capacitor array and comparator. In typical comparator apply, the comparator is the two-ports comparator, and one port of compatator will connect the SAR capacitor array, another port will connect a equal capacitor array. Although this comparator has the high resolution in compare stage, it also costs more layout area. This paper will introduce a real single-port comparator unit schematic structure in SAR A/D convertor, it only need one SAR capacitor array to decraese the layout area, and it also can identifies 3uV in compare stage. At last, through simulation verification and finished circuit test, this comparator in this paper can saisfied the apply of 16-bit SAR A/D convertor.

Citation Download Citation

Yong-Kai Li, Shou-Hao Wang, Yuan-Jun Cen, Ping Yang, Zhi-kai Liao, Niu Yi, and Qi Xu "The true single-port compartor in multiple channel SAR ADC", Proc. SPIE 11933, 2021 International Conference on Neural Networks, Information and Communication Engineering, 119332K (15 October 2021); https://doi.org/10.1117/12.2615197

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available