Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"DNL"”.
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Linearity and monotonicity of a 10-bit, 125 MHz, segmented current steering digital to analog converter
… the magnitude of the differential nonlinearity (DNL) was less than ± 1 least significant bit (LSB) and the integral nonlinearity (INL) was less than ± 0.5 LSB. The study also showed that the DAC has primarily negative DNL although the DNL is well within the desired specification.
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Effect of Feeding Regimen and Age on Lipid Metabolism in Broiler Breeder Hens and Progeny
… used as a substrates for de novo lipogenesis (DNL) in young hens. The third experiment was set to compare the rate of DNL between young (28wk) and old (40wk) breeder hens as well as their progeny. The results suggested that the rate of DNL was higher in young hens than the old ones. At 7d of …
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Comparison of methods for evaluating impacts of aviation noise on communities
… from locations outside the 65dB Day-Night Level (DNL) contour considered the significant noise exposure threshold in U.S. federal regulation. This indicates that this threshold does not sufficiently capture areas that experience annoyance related to more concentrated, lower level overflight noise …
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Analysis of R-2R digital-to-analog converter with equal current switching
… thermometer-coded DAC benefits from the relaxed DNL but requires a large area to realize. The R-2R DAC with equal current switching into the ladder network can be implemented using very low currents with more relaxed current matching requirements over the binary-weighted DAC, and less area over …
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The Aging-Induced Decline in Beige Adipose Tissue Development
… fat response with age: the de novo lipogenesis (DNL) pathway and natriuretic peptides. In Chapter 3, we follow-up on hypotheses from Chapter 2 and assess the aged environment using transplantation experiments and examine two candidate genes, Pdgfrl and Npr3, to further elucidate their mechanisms. …
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Low-Spurious Analog-to-Digital Conversion Using Multi-Stage Code-Error Calibration
… results. The prototype ADC exhibits a DNL of +0.75/$-$0.6 LSB, an INL of +1.77/$-$1.58 LSB, and all spurious components are suppressed to below $-$93 dB when sampled at 5 MHz. The chip occupies an active area of 27 mm$\sp2,$ and the analog part consumes 60 mW at 5 V. Memory and …
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A high-speed cascaded folding and interpolating A/D converter
… dissipates 54m W while achieving < 1 /2 LSB DNL performance in simulation.
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Development of a Fast Method to Analyze Patterns in Airport Noise
… International Airport in 2016. Day-Night-Level (DNL) is calculated on a yearly, daily, and hourly basis, highlighting the variability in noise patterns depending on evolving airport runway configuration. N60 is calculated as a supplemental metric on a daily basis.
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Design and implementation of high linearity FPGA-TDCs and an integrated large scale TCSPC system for time-resolved applications
… to restrain the differential non-linearity (DNL) to < ±1LSB (LSB = 10.5ps) with the complete removal of missing-codes. By developing and using a hardware-friendly bin-width calibration, the DNL has been reduced to < ±0.1LSB. Furthermore, getting benefits from the direct-histogram …
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A time-based energy-efficient analog-to-digital converter
… we were able to achieve 12 bits of DNL limited precision or 11 bits of thermal noise-limited precision at a sampling frequency of 31.25kHz with 75 [mu] W of total analog and digital power consumption. These numbers yield a thermal noise-limited energy-efficiency of 1.17pJ per …
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High-Resolution Nyquist -Rate Analog -to -Digital Converter
… process, exhibits a differential nonlinearity (DNL) of +0.23/-0.28 least significant bit (LSB), an integral nonlinearity (INL) of +0.95/-1.06 LSB, a spurious-free dynamic range (SFDR) of 91.6 dB, and a signal-to-noise ratio (SNR) of 74.2 dB with a 1-MHz input and a 20-MHz clock. The chip …
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An 8-Bit Analog-to-Digital Converter for Battery Operated Wireless Sensor Nodes
… of +7 LSB and 31.1 LSB, respectively, and a DNL range of -0.9 LSB to +0.8 LSB and an INL range of approximately -4.6 LSB to +12 LSB. The INL is much improved in regard to the application of the temperature sensor. The INL for this region of interest is from -3.5 LSB to +2.8 LSB.</p>
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Oversampled pipline A/D converters with mismatch shaping
… which has reduced differential nonlinearity (DNL) and an even integral nonlinearity (INL). The CFCS converter offers the foundation for the implementation of many different algorithms for mismatch shaping, some with very simple circuit realizations. It is possible to generalize some of these …
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Low-power high-performance SAR ADC with redundancy and digital background calibration
… SFDR, +1.0/-0.9 LSB₁₂ INL and +0.5/-0.7 LSB₁₂ DNL are achieved at 50MS/s at Nyquist rate. The total power consumption, including the estimated calibration and reference power, is 2.1mW, corresponding to 21.9fJ/conv.- step FoM. This ADC achieves the best FoM of any ADCs with greater than 10b …
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Aircraft noise modeling of dispersed flight tracks and metrics for assessing impacts
… and one runway at CLT. Alternatively peak day DNL is also shown to be a possible representative noise metric and will also be investigated. A noise metric representative of the impacts of frequent overflights allowed for communication of analysis results for possibilities for dispersed flight …
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Design of ultra low power analog-to-digital converter for ambulatory EEG recording
… a sampling rate of 32 kHz. The ADC has a maximum DNL and INL of 0.55 LSB and 0.75 LSB respectively. The SNDR and SFDR of the converter are measured at a sampling rate of 32 kHz and 15.5 kHz input tone to be 57.9 dB and 68.5 dBFS respectively. The ADC FOM is 51 fJ/Conv-Step.
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The Association Between Hepatic Steatosis and Glucose Metabolic Dysfunction
… downstream target genes (P < 0.05). However, DNL index was greater for pigs fed the MCFA compared with those fed LCFA (P < 0.0001). The relative mRNA expression of glycolytic, and gluconeogenic genes was upregulated in high energy fed pigs (P < 0.05), without any significant differences in …
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Study of the TR Synchronization and Video Conversion Unit
… was then tested. The effects of non-linearities (DNL and INL) in the ADC and phase noise on the ADC sample clock on the radar measurements were analysed. The jitter on the transmit sync (TX), the ADC sample clock and tracking gates were found to be the most critical aspects of the SVCU. To meet …
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Low-power high-performance SAR ADC design with digital calibration techniques
… less than 0.30-LSB differential nonlinearity (DNL), and less than 0.23-LSB integral nonlinearity (INL). The ADC array occupies an active area of 1.35 mm2 and dissipates 30.3 mW, including synthesized digital calibration circuits and an on-chip dual-loop delay-locked loop (DLL) for clock …