2011
DOI: 10.1109/tcsi.2010.2092132
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An Adaptive Resolution Asynchronous ADC Architecture for Data Compression in Energy Constrained Sensing Applications

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Cited by 130 publications
(74 citation statements)
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“…A capacitive DAC structure based on charge sharing principle was used in [9] which generate the varying comparison interval. A hybrid switched-capacitor/resistor-string architecture was used for implementing DAC in [10] [12]. The 2 DACs used in this architecture create the threshold levels which bound the input signal from above and below.…”
Section: Previous Literaturementioning
confidence: 99%
See 1 more Smart Citation
“…A capacitive DAC structure based on charge sharing principle was used in [9] which generate the varying comparison interval. A hybrid switched-capacitor/resistor-string architecture was used for implementing DAC in [10] [12]. The 2 DACs used in this architecture create the threshold levels which bound the input signal from above and below.…”
Section: Previous Literaturementioning
confidence: 99%
“…Level crossing ADCs offers lower sampling rate, power consumption and area than synchronous ADCs. Level crossing ADC has been mainly used in embedded sensing systems, such as environmental sensors (temperature, pressure sensors), implantable biomedical applications, hearing aids and ultrasound applications [2]- [7], [10], [ 11]. This paper presents the design of a charge sharing 1 bit DAC with pseudo resistors and additional dummy NMOS devices for a level crossing ADC.…”
Section: Introductionmentioning
confidence: 99%
“…Accordingly, no data are fed through to higher levels in the system, allowing these to remain idle. These possibilities in the design of sensor front ends have been explored for ultrasound measurement systems [22] as well as for other energy constrained sensor applications [23]. In terms of energy cost, the A/D conversion is dominant in the scenarios discussed above.…”
Section: B Low Power Analog Front End Architecturementioning
confidence: 99%
“…The conventional sampling is replaced with asynchronous mapping of analog signal value into the time domain. Existing implementations use a level-crossing sampling [14][15][16][17][18], asynchronous Sigma-Delta modulator [6,7], or a hybrid approach [8,19]. The A-ADCs based on the levelcrossing sampling [20,21] are the instantaneous value converters, while the A-ADCs with TEMs serve as the mean value converters due to inherent integration properties [6].…”
Section: Asynchronous Adcsmentioning
confidence: 99%