A novel split capacitor array switching scheme with proportional coefficient for SAR ADC

Ding, Ruixue; Dong, Shaopeng; Liu, Shubin; Sun, Depeng; Zhu, Zhangming

doi:10.1007/s10470-018-1373-4

Cited by 6 publications

(2 citation statements)

References 11 publications

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“…There are research concerns to power consumption issues for every unit in the sensing system. Adoption of more advanced manufacturing processes [ 139 , 140 , 141 , 142 ], a simplified circuit [ 119 , 122 ], and other methods can significantly reduce the power of a certain unit of the sensing system. However, from the overall perspective of the sensing device, such improvement is relatively small.…”

Section: Discussionmentioning

confidence: 99%

“…Although this scheme significantly reduced the switching energy of the ADC, the researchers were not content with this. In another study [ 122 ], they proposed a switching scheme that comprehensively used a split capacitor array structure, MSB split method, and monotonic switching technique with bridge capacitors. As an improvement of the previous work, it saves 99.9% of the energy and reduces the number of capacitors by 96.9% compared with the traditional structure.…”

Section: Analog-to-digital Conversionmentioning

confidence: 99%

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Progress in Data Acquisition of Wearable Sensors

Liu

Kong

et al. 2022

Biosensors

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Wearable sensors have demonstrated wide applications from medical treatment, health monitoring to real-time tracking, human-machine interface, smart home, and motion capture because of the capability of in situ and online monitoring. Data acquisition is extremely important for wearable sensors, including modules of probes, signal conditioning, and analog-to-digital conversion. However, signal conditioning, analog-to-digital conversion, and data transmission have received less attention than probes, especially flexible sensing materials, in research on wearable sensors. Here, as a supplement, this paper systematically reviews the recent progress of characteristics, applications, and optimizations of transistor amplifiers and typical filters in signal conditioning, and mainstream analog-to-digital conversion strategies. Moreover, possible research directions on the data acquisition of wearable sensors are discussed at the end of the paper.

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