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http://dx.doi.org/10.7471/ikeee.2018.22.4.1218

Double Rail-to-Rail NTV SAR ADC  

Jo, Yong-Jun (Dept. of Electronics Engineering, Chung-Ang University)
Seong, Kiho (Dept. of Electronics Engineering, Chung-Ang University)
Seo, In-Shik (Zaram Technology)
Baek, Kwang-Hyun (Dept. of Electronics Engineering, Chung-Ang University)
Publication Information
Journal of IKEEE / v.22, no.4, 2018 , pp. 1218-1221 More about this Journal
Abstract
This paper presents a low-power 0.6-V 10-bit 200-kS/s double rail-to-rail successive approximation register (SAR) analog-to-digital converter (ADC). The proposed scheme allows input signal with 4 times power which is compared with conventional one by applying proposed rail-to-rail scheme, and that improves signal-to-noise ratio(SNR) of NTV SAR ADCs. The prototype was designed using 65-nm CMOS technology. At a 0.6-V supply and $2.4-V_{pp}$ (differential) and 200-kS/s, the ADC achieves an SNDR of 59.87 dB and consumes 364.5-nW. The ADC core occupies an active area of only $84{\times}100{\mu}m^2$.
Keywords
Analog-to-digital converter; energy efficient; low-power; successive approximation register; double rail-to-rail;
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