Searched for: subject%3A%22ADC%22
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Yildiz, Hüsna (author), de Vries, Marten (author), Öztürkoglu, Emirhan (author)
This thesis describes the design of a low-cost class-S power quality analyzer based on a Raspberry Pi 4. Capable of detecting power frequency, magnitude, voltage dips and swells, harmonics, and total harmonic distortion, the project consists of four main components: the communication protocol, the interface, the algorithms for power quality...
bachelor thesis 2024
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Li, Shenyang (author)
This thesis describes the design of a 3rd order 1-bit delta-sigma modulator whose input-signal range (0 to 1.95V) exceeds its supply voltage (1.2V). By using a passive input stage and a single-OTA resonator, this beyond-the-rails modulator realizes a 3rd order loop filter with only two amplifiers instead of the usual three and thus achieves...
master thesis 2023
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Zhang, Remy (author)
Bidirectional neural recording ICs faces the challenge of simultaneous stimulation and recording. The recording IC should endure large stimulation artifacts while capturing weak neural signals excited by the stimuli. The stimulation artifacts can be as large as hundreds of millivolts, which can saturate the recording front end. Conventional...
master thesis 2023
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Dai, Jie (author)
In ultrasound imaging systems, a charge-sharing successive-approximation-register (SAR) ADC has benefits over a charge-redistribution SAR because the charge-sharing SAR is organically compatible with the subarray beamformer which is deployed to reduce the large channel count. Besides, the noise-shaping (NS) SAR is a promising candidate for...
master thesis 2023
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Abo Alainein, Mohammed (author)
This thesis provides an investigation of the architecture and the design of the coarse DACs in continuous time pipeline (CTP) ADC to achieve high SFDR performance within a large bandwidth at sampling frequency of 4.8 GHz in TSMC 28nm technology.<br style="box-sizing: border-box"/> Mismatch errors of the coarse DACs in CTP ADC are very...
master thesis 2023
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Safa, Ali (author), Van Assche, Jonah (author), Frenkel, C. (author), Bourdoux, Andre (author), Catthoor, Francky (author), Gielen, Georges (author)
Level-crossing analog-To-digital converters (LC-ADCs) are neuromorphic, event-driven data converters that are gaining much attention for resource-constrained applications where intelligent sensing must be provided at the extreme edge, with tight energy and area budgets. LC-ADCs translate real-world analog signals (such as ECG, EEG, etc.) into...
conference paper 2023
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Tang, Z. (author), Pan, S. (author), Grubor, M. (author), Makinwa, K.A.A. (author)
This article presents a sub-1 V bipolar junction transistor (BJT)-based temperature sensor that achieves both high accuracy and high energy efficiency. To avoid the extra headroom required by conventional current sources, the sensor’s diode-connected BJTs are biased by precharging sampling capacitors to the supply voltage and then discharging...
journal article 2023
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Lee, J. (author), Theuwissen, A.J.P.A.M. (author)
This paper presents a new 2-step SAR ADC architecture for image sensors in machine vision applications. This structure effectively improves the structural problems of the image sensor caused by the area occupied by the ADC, such as linearity and temporal noise performance. In this work, we designed a two-step SAR ADC using a 6-bit SAR ADC and...
conference paper 2023
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Kiene, G. (author), Overwater, R.W.J. (author), Babaie, M. (author), Sebastiano, F. (author)
This paper presents a floating inverter amplifier (FIA) that performs high-linearity amplification and sampling while driving a 2&lt;inline-formula&gt; &lt;tex-math notation="LaTeX"&gt;$\times$&lt;/tex-math&gt; &lt;/inline-formula&gt; time-interleaved (TI) SAR ADC, operating from room temperature (RT) down to 4.2 K. The power-efficient FIA...
journal article 2023
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Kiene, G. (author), Overwater, R.W.J. (author), Catania, Alessandro (author), Gunaputi Sreenivasulu, A.M. (author), Bruschi, Paolo (author), Charbon-Iwasaki-Charbon, E. (author), Babaie, M. (author), Sebastiano, F. (author)
This article presents a two-times interleaved, loop-unrolled SAR analog-to-digital converter (ADC) operational from 300 down to 4.2 K. The 6-8-bit resolution and the sampling speed up to 1 GS/s are targeted at digitizing the multi-channel frequency-multiplexed input in a spin-qubit reflectometry readout for quantum computing. To optimize the...
journal article 2023
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Eland, E.N. (author), Mehrotra, Shubham (author), Karmakar, S. (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author)
Zoom ADCs combine a coarse SAR ADC with a fine delta-sigma modulator (?SM) to efficiently obtain high energy efficiency and high dynamic range. This makes them well suited for use in various instrumentation and audio applications. However, zoom ADCs also have drawbacks. The use of over-ranging in their fine modulators may limit SNDR, large...
book chapter 2023
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Yang, Hankai (author)
Time-of-Flight (ToF) is an optical range detection technique that derives range from the round-trip time of light pulse between the imager and the target. Due to the simple hardware and distance extraction algorithm, ToF imagers are widely adopted in existing (automotive, consumer electronics, etc.) and emerging (AR/VR, etc.) applications...
master thesis 2022
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Li, Yige (author)
Optical sensor has been widely used in daily life. One of the important applications of optical sensors is the ambient light sensor installed in portable devices. The screen brightness of portable devices like smartphones is designed to be automatically adjusted based on the ambient environment. The ambient light detection is realized using...
master thesis 2022
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Cerviño Fungueiriño, David Cervino (author)
Quantum computers exploit the quantum behavior of quantum bits (qubits) that are typically operated at cryogenic temperature. Qubits require an electronic control interface. Nowadays, such classical electronic controllers use bulky instruments operated far fromthe qubits outside the cryostat. To run practical quantum algorithms, thousands to...
master thesis 2022
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MOU, Jixuan (author)
A photoplethysmogram (PPG) is an important optically-obtained bio-signal that enables convenient daily monitoring of heart rate and oxygen saturation (SpO2). Most state-of-the-art PPG sensing systems require an off-chip photodiode, and the photodiode's output parasitic capacitance limits the power-noise trade offs. The objective of this project...
master thesis 2022
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Kragt, Wouter (author)
To be able to cope with the demands of next generation radar applications, a bandwidth of 400MHz is required. The SAR assisted CT ∆Σ ADC provides an energy efficient ADC, but needs improvements to cope with the bandwidth enlargement. This thesis examines the front end components and thus initially focuses on resolving the issues in the front end...
master thesis 2022
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Chen, Y. (author), Gong, J. (author), Staszewski, R.B. (author), Babaie, M. (author)
In this article, we present a 4.5-5.1-GHz fractional-N digitally intensive phase-locked loop (DPLL) capable of maintaining its performance in face of a large supply ripple, thus enabling a direct connection to a switched-mode dc-dc converter. Supply pushing of its inductor-capacitor (LC) oscillator is suppressed by properly replicating the...
journal article 2022
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Namavar, Mohsen (author), Lotfi, R. (author), Sodagar, Amir M. (author)
This paper reports on a predictive analog-todigital converter (ADC). The proposed ADC employs a linear predictive filter to prepare a prediction for the current sample based on the values of the previous digital codes. This leads to significant reduction in the mean bit cycle of the converter. It is shown in this work that this idea is...
conference paper 2022
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Hopf, Y.M. (author), Ossenkoppele, Boudewine W. (author), Soozande, Mehdi (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, Chao (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)
In this article, an application-specific integrated circuit (ASIC) for 3-D, high-frame-rate ultrasound imaging probes is presented. The design is the first to combine element-level, high-voltage (HV) transmitters and analog front-ends, subarray beamforming, and in-probe digitization in a scalable fashion for catheter-based probes. The...
journal article 2022
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Pourahmad, Ali (author), Dehghani, Rasoul (author), Ahmadi-Mehr, Seyed Amir-Reza (author), Lotfi, R. (author)
Implementation of the DAC is usually the bottleneck in designing a SAR ADC. Here an innovative DAC-less SAR (DLSAR) ADC architecture is presented which alleviates some drawbacks of the conventional SAR counterpart. The proposed DLSAR binary search algorithm is comprised of two arithmetic operations of division-by-two and subtraction to...
journal article 2022
Searched for: subject%3A%22ADC%22
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