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Digital-to-time converter for fluorescence lifetime imaging
2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2013The fluorescence lifetime property of fluorophores can be used to differentiate between spectrally identical fluorophores, to reduce background signals, and to measure ion concentration in the local environment of fluorophores. Despite these advantages, use of the technique is limited because of the high cost and low throughout of existing methods for ...
Shuo Li, Christopher D. Salthouse
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Interpolating time-to-digital converters
Optoelectronics, Instrumentation and Data Processing, 2008Principles of conversion of single time intervals into a digital code with the use of interpolation of the reference period for reducing the sampling error are reviewed. Interpolating converters are based on integrated digital delay lines and phase interpolation elements, which allow the resolution lower than the propagation delay of a single logical ...
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Designing Time-to-Digital Converter for Asynchronous ADCs
2007 IEEE Design and Diagnostics of Electronic Circuits and Systems, 2007Time-to-digital converter designing and analysis for asynchronous ADCs is discussed in the paper. The proposed ADC utilizes two-level conversion scheme consisting in duty-cycle modulation and subsequent time-to-digital conversion (TDC). Three concepts of the asynchronous ADC digital serial output interface are presented.
Dariusz Koscielnik, Marek Miskowicz
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An analog-to-digital converter with time-variant window
2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353), 2003We present a first order analog-to-digital converter with time-variant window. If a DC input is applied, the converter outputs a binary sequence until the internal state enters into the window. It is clarified analytically that the converter can realize higher resolution and lower error variation with shorter code length than previous converters.
Hiroshi Imamura +2 more
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An optical method for the time-to-digital converters characterization
2015 17th International Conference on Transparent Optical Networks (ICTON), 2015Measurement of the distribution random error describing a high precision multi-tapped delay lines with coding registers module is important from the perspective of construction high-resolution time-to-digital converters. Knowledge of this distribution allows to optimize the process of implementation Multi-Tapped Delay Lines in programmable structures ...
Robert Frankowski +2 more
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Synchronization in a Multilevel CMOS Time-to-Digital Converter
IEEE Transactions on Circuits and Systems I: Regular Papers, 2009Accurate time-to-digital conversion is typically based on determining the positions of the timing signals within the period of an accurate clock with digital delay-line interpolators. In order to save circuit area and to improve single-shot precision to the picosecond level, multilevel interpolators can be used.
Jussi-Pekka Jansson +2 more
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Design of Time-to-Digital Converter Output Interface
2008 11th IEEE Workshop on Design and Diagnostics of Electronic Circuits and Systems, 2008A design of time-to-digital converter output interface for ADCs with asynchronous sigma-delta modulation is presented in details in the paper. The concept of the digital interface with double data buffering and asynchronous serial link is carefully explained on the basis of the schematics of particular functional blocks.
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Applications for Time-to-Digital Converters
2010Amongst other things, time-to-digital converters are used in high energy and particle physics, for measurement and instrumentation applications, for time of flight measurement, digital PLLs, and data converters. This chapter focuses on emerging applications in main stream micro-electronics.
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Time-to-Digital Converter Basics
2010On the basis of a generic mixed-signal system the scaling difficulties of analog and mixed-signal circuits based on a signal representation in the voltage domain are discussed for nanometer CMOS technologies. Therewith, the advantages of a signal representation in the time domain are emphasized.
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