Results 1 to 10 of about 7,976 (245)

Accurate Power-Efficient Format-Scalable Multi-Parallel Optical Digital-to-Analogue Conversion [PDF]

open access: goldPhotonics, 2021
In optical transmitters generating multi-level constellations, optical modulators are preceded by Electronic Digital-to-Analog-Converters (eDAC). It is advantageous to use eDAC-free Optical Analog to Digital Converters (oDAC) to directly convert digital ...
Moshe Nazarathy, Ioannis Tomkos
doaj   +2 more sources

Upregulation of transmitter release probability improves a conversion of synaptic analogue signals into neuronal digital spikes [PDF]

open access: goldMolecular Brain, 2012
Action potentials at the neurons and graded signals at the synapses are primary codes in the brain. In terms of their functional interaction, the studies were focused on the influence of presynaptic spike patterns on synaptic activities.
Yu Jiandong, Qian Hao, Wang Jin-Hui
doaj   +2 more sources

Evaluation of Information Indicators of Quantization Noise Generated by Speech Signal Analogue-Digital Conversion

open access: diamondDoklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2023
The paper presents a technique for estimating the information parameters of the quantization noise generated by the analog-to-digital conversion of the measuring signal. An experiment and algorithm descriptions are presented to confirm the correctness of
V. K. Zheleznyak   +2 more
doaj   +3 more sources

Regulation of EGFR signal transduction by analogue-to-digital conversion in endosomes

open access: goldeLife, 2015
An outstanding question is how receptor tyrosine kinases (RTKs) determine different cell-fate decisions despite sharing the same signalling cascades. Here, we uncovered an unexpected mechanism of RTK trafficking in this process.
Roberto Villaseñor   +4 more
doaj   +3 more sources

Theoretical total harmonic distortion evaluation based on digital to analogue converter mismatch to improve the linearity of successive approximation register analogue to digital converter

open access: yesIET Circuits, Devices and Systems, 2022
Mismatch in the binary‐weighted capacitive digital‐to‐analog converter (DAC) greatly affects the linearity of the successive‐approximation‐register (SAR) ADC by deteriorating the total harmonic distortion (THD).
Li Dong   +8 more
doaj   +1 more source

Asynchronous SAR ADC with self‐timed track‐and‐hold

open access: yesElectronics Letters, 2023
This paper presents an asynchronous SAR ADC featuring a self‐timed track‐and‐hold (STH) architecture. The design aims to address the common timing issue of divider‐based clock generation, where the fixed‐time track‐and‐hold (FTH) period often results in ...
Sunghyun Bae   +4 more
doaj   +1 more source

A novel bandgap voltage reference based on folding compensation

open access: yesElectronics Letters, 2023
This letter proposes a novel bandgap reference circuit that utilizes both curvature and folding compensation to achieve a temperature coefficient (TC) of 2.23 ppm/°C.
Mingyu Liu   +4 more
doaj   +1 more source

Method of high timing resolution pulse synthesis based on virtual sampling [PDF]

open access: yesMetrology and Measurement Systems, 2022
Adjustable-width pulse signals are widely used in systems such as test equipment for hold time, response time and radar testing. In this study, we proposed a pulse generation method based on virtual sampling with ultra-high pulse width resolution. In the
Hanglin Liu   +4 more
doaj   +1 more source

A 1.2V −55°C‐125°C ultra‐low noise bandgap voltage reference without start‐up circuit

open access: yesElectronics Letters, 2023
This paper proposes a novel bandgap voltage reference (BGR) with low temperature coefficient, ultra‐low noise and without start‐up circuit. Designed in a TSMC 180‐nm CMOS technology, this bandgap voltage reference operates in the temperature range of −55
Linzhi Tao, Haoyu Zhuang, Qiang Li
doaj   +1 more source

A neural network based background calibration for pipelined‐SAR ADCs at low hardware cost

open access: yesElectronics Letters, 2023
This paper proposes a background calibration scheme for the pipelined‐Successive Approximation Register (SAR) Analog‐to‐Digital Converter (ADC) based on the neural network.
Yuguo Xiang   +5 more
doaj   +1 more source

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