27.6 A 0.7pF-to-10nF fully digital capacitance-to-digital converter using iterative delay-chain discharge

Jung, Wanyeong; Jeong, Seokhyeon; Oh, Sechang; Sylvester, Dennis; Blaauw, David

doi:10.1109/isscc.2015.7063137

Cited by 60 publications

(80 citation statements)

References 5 publications

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“…The fourth design example illustrates an energy-efficient variant of a singleslope CDC [10]. This design concentrates on reducing conversion energy as low as possible while maintaining decent performance comparable to prior art.…”

Section: Iterative Delay-chain Discharge Cdcmentioning

confidence: 99%

“…Therefore, CDC researchers aim at obtaining high resolution with low power consumption. CDCs can be categorized by their conversion schemes including successive approximation [7,8], delta-sigma modulation [3,4,9], and period modulation [2,[10][11][12][13]. uses a correlated double sampling front-end [7].…”

Section: Introductionmentioning

confidence: 99%

“…Section 4 describes a dual slope CDC with an energy-efficient charge subtraction scheme [2]. Section 5 presents a fully-digital CDC using iterative delay-chain discharge [10]. Finally, the paper is concluded in Sect.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Energy-Efficient CDCs for Millimeter Sensor Nodes

Jung

et al. 2016

Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems

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Multiple energy-efficient CDCs are proposed for millimeter sensor nodes. Compared to the state-of-the-art, these CDCs achieves excellent energy efficiency, high SNR, and wide input range with a variety of techniques. These include correlated double sampling in front of a SAR ADC, incremental delta-sigma conversion with a zoom-in SAR converter, energy-efficient dual-slope conversion, and fully-digital iterative delay-chain discharge conversion.

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Section: Iterative Delay-chain Discharge Cdcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Energy-Efficient CDCs for Millimeter Sensor Nodes

Jung

et al. 2016

Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems

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“…Typical capacitance to digital converters (CDCs) use charge sharing or charge transferring between capacitors to convert the sampled capacitance to voltage. This approach requires complex analogue circuits, such as amplifiers and ADCs, which increase design complexities and often increase power consumption [7]. Integrating capacitive sensors into many applications including small wireless sensor systems is therefore challenging due to the total system power/energy budget, which can be in the range of a few nW [1] [2] [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

“…Unlike conventional methods, the converter recently reported in [7] is a fully digital solution using iterative delay chain discharge and promises reduced complexity, measurement time, power/energy, etc.…”

Section: Introductionmentioning

confidence: 99%

Low power voltage sensing through capacitance to digital conversion

Shang

Gao

et al. 2016

2016 IEEE 19th International Symposium on Design and Diagnostics of Electronic Circuits &Amp; Systems (DDECS)

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Capacitance sensors are widely used for sensing physical parameters. Conventional capacitance to digital methods use complex analog ADC techniques which are power hungry. Recently a fully digital solution was proposed with improved power consumption. This paper describes a number of problems in that solution, analyzes these problems, and proposes a new design free of these problems. A voltage senor as an example was designed based on the proposed capacitance to digital conversion in this paper. The new method achieves the same accuracy with less than half the circuit size, and 25% and 33% savings on power and energy consumption.

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