An efficient threshold voltage generation for SAR ADCs

Khoshakhlagh, Mohammad; Yavari, Mohammad

doi:10.1007/s10470-013-0028-8

Cited by 4 publications

(2 citation statements)

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“…In charge‐redistribution SAR ADCs, the power consumption of the capacitor switching in the digital‐to‐analog converter (DAC) usually is dominant 1–5,9–15 . Recently, several techniques have been presented to reduce the DAC switching energy and capacitor size 1–26 …”

Section: Introductionmentioning

confidence: 99%

“…In other methods, various techniques such as capacitor splitting, 12 closed‐loop charge recycling, 15 charge‐sharing, 14,16,20 sub‐DAC merged switching, 19 and segmented SAR ADC 23 are used to reduce the DAC switching energy and area. However, except, 11,17,18 any solution is not intended to reduce the number of the required switches in the DAC capacitor array. The large number of switches occupies more area, and in some cases, a complicated control logic is required.…”

Section: Introductionmentioning

confidence: 99%

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Shifting the sampled input signal in successive approximation register analog‐to‐digital converters to reduce the digital‐to‐analog converter switching energy and area

Momeni

Yavari

2020

Circuit Theory & Apps

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Summary In this paper, a switching scheme is presented to reduce the capacitive digital‐to‐analog converter (DAC) switching energy, area, and the number of switches in successive approximation register (SAR) analog‐to‐digital converters (ADCs). In the proposed DAC switching method, after a few most significant bits (MSBs) decision, the sampled differential input signal is shifted into two special regions where the required DAC switching energy and area is less than the other regions. This technique can be utilized in most of the previously reported DAC switching schemes to further reduce the capacitive DAC switching energy and area. The conventional and two recently presented DAC switching techniques are utilized in the proposed SAR ADC to evaluate its usefulness.

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Section: Introductionmentioning

confidence: 99%