| The need for high dynamic range analog to digital converters (ADCs) is strong due to the growing use of digital signal processing in communications applications. ADC performance has improved over the years due to advances in both design concepts and semiconductor technologies. However most ADCs still still exhibit undesirable distortion in addition to quantization error, thus limiting spuriou...

Imaging genetics is an emerging field in which the association between genes and neuroimaging-based quantitative phenotypes are used to explore the functional role of genes in neuroanatomy and neurophysiology in the context of healthy function and neuropsychiatric disorders. The main obstacle for researchers in the field is the high dimensionality of the data in both the imaging phenotypes and ...

The receiving performance of a frequency hopping receiver based on interference and frequency-to-time mapping are analyzed. broadening the passband induced by high speed is theoretically spurious-free dynamic range (SFDR), frequency-dependent RF gain, average signal-to-noise ratio (SNR) corresponding to gain derived indicate performance. Experimental verifications SFDR were conducted. at 7.21 G...

This paper presents a high-speed, low-glitch, and low-power design for a 10-bit binary-weighted currentsteering digital-to-analog converter (DAC). Instead of using large input buffers to drive a lot of current switches and re-timing latches, the proposed design uses variabledelay buffers with a compact layout to compensate for the delay difference among different bits, and to reduce glitch ener...

Recent results indicate that genome-wide association studies (GWAS) have the potential to explain much of the heritability of common complex phenotypes, but methods are lacking to reliably identify the remaining associated single nucleotide polymorphisms (SNPs). We applied stratified False Discovery Rate (sFDR) methods to leverage genic enrichment in GWAS summary statistics data to uncover new ...

The first-degree relatives of patients affected by colorectal cancer, who do not belong to familial adenomatous polyposis and hereditary nonpolyposis colorectal cancer families, have a doubled risk of developing tumors of the large intestine. We have previously demonstrated that subjects with a single first-degree relative (SFDR) with colon cancer have a doubled risk for developing colorectal a...

In this paper currently used DAC frequency domain parameters definitions are evaluated in order to achieve a consistent terminology that can be used in a DAC standard. New definitions for DAC THD, SFDR, SNR, SINAD and ENOB are proposed taking into account the most used definitions, the need of avoiding any ambiguities and the measurability of them.

Multigigahertz flash ADC is limited by sampling clock timing jitter. Since it is used in high frequency applications it is essential to remove jitter effects which will reduce the efficiency of ADC. This paper describes the effect of clock transition time on the spurious free dynamic range of a CMOS sample and hold circuit. To improve SFDR the effect of finite clock transition time of the signa...

This letter proposes a parasitic elimination bootstrapped switch and fast settling residual amplifier to be used in multiplying digital-to-analog converter (MDAC) order improve the performance of pipelined ADC at high frequency. The improves sampling spurious free dynamic range (SFDR) by more than 6dB shielding nonlinear capacitance MOS transistor substrate. In addition, frequency, negative zer...

A 10-b current steering CMOS digital-to-analog converter (DAC) is described, with optimized performance for frequency domain applications. For sampling frequencies up to 200 MSample/s, the spurious free dynamic range (SFDR) is better than 60 dB for signals from dc to Nyquist. For sampling frequencies up to 400 MSample/s, the SFDR is better than 55 dB for signals from dc to Nyquist. The measured...