Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164306
R. Pillera, C. Altomare, G. Robertis, L. Venere, F. Gargano, Mario Giliberti, F. Loparco, S. Loporchio, L. Lorusso, G. Panzarini, D. Serini, M. N. Mazziotta
One of the goals of the new generation satellite-borne experiments is the detection of low-energy cosmic rays. This kind of measurements can help to understand the mechanisms behind solar flares and other space weather phenomena, which can affect satellite communications and power grids on Earth. A tracker based on plastic scintillating fibers equipped with silicon photomultipliers (SiPMs) represents a viable option for this kind of detectors. We designed a tracker prototype to investigate the performance of fibers with different diameters, readout with SiPMs with different strip pitches and equipped with a custom front-end board. We report on the characterization of the prototype and we discuss the efficiency measurements performed with the fiber tracker prototype and their implications in the design of the tracker of space borne satellites.
{"title":"Characterization of a light fiber tracker prototype with SiPM array readout","authors":"R. Pillera, C. Altomare, G. Robertis, L. Venere, F. Gargano, Mario Giliberti, F. Loparco, S. Loporchio, L. Lorusso, G. Panzarini, D. Serini, M. N. Mazziotta","doi":"10.1109/IWASI58316.2023.10164306","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164306","url":null,"abstract":"One of the goals of the new generation satellite-borne experiments is the detection of low-energy cosmic rays. This kind of measurements can help to understand the mechanisms behind solar flares and other space weather phenomena, which can affect satellite communications and power grids on Earth. A tracker based on plastic scintillating fibers equipped with silicon photomultipliers (SiPMs) represents a viable option for this kind of detectors. We designed a tracker prototype to investigate the performance of fibers with different diameters, readout with SiPMs with different strip pitches and equipped with a custom front-end board. We report on the characterization of the prototype and we discuss the efficiency measurements performed with the fiber tracker prototype and their implications in the design of the tracker of space borne satellites.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128623147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164418
L. Benini
The next generation of highly autonomous vehicles, with form factors ranging from tiny palmsized drones to cars pushes signal processing and machine learning aggressively towards the edge, near sensors and actuators, with strong energy-efficiency, safety and security requirements, while at the same time raising the bar in terms of flexibility and performance. To succeed in this balancing act, we need principled ways to walk the line between conflicting non-functional requirements. In the talk, I will describe our experience in leveraging the Open RISC-V ISA and open hardware approaches to innovate across the board and pave the way for an open embedded computing platform for autonomous vehicles.
{"title":"From Nano-Drones to Cars - A RISC-V Open Platform for next-generation Vehicles","authors":"L. Benini","doi":"10.1109/IWASI58316.2023.10164418","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164418","url":null,"abstract":"The next generation of highly autonomous vehicles, with form factors ranging from tiny palmsized drones to cars pushes signal processing and machine learning aggressively towards the edge, near sensors and actuators, with strong energy-efficiency, safety and security requirements, while at the same time raising the bar in terms of flexibility and performance. To succeed in this balancing act, we need principled ways to walk the line between conflicting non-functional requirements. In the talk, I will describe our experience in leveraging the Open RISC-V ISA and open hardware approaches to innovate across the board and pave the way for an open embedded computing platform for autonomous vehicles.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128734631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164608
Theodoros D. Verykios, Domenico Balsamo, G. Merrett
Transient computing systems, also known as intermittent computing systems, are batteryless systems powered by energy harvesting (EH) sources that do not require large energy storage for system operations. Instead, they rely on retaining their state, i.e. a snapshot, in non-volatile memory (NVM) in the event of a power outage and restoring it when the power recovers. In this paper, we first discuss the limitations of state-of-the-art techniques that attempt to minimize the amount of system state saved to NVM. Therefore, we propose a novel energy-efficient system-level approach for state retention through memory tracing based on a custom hardware module named MeTra that traces changes in the main (volatile) memory between power outages. MeTra allows the voltage threshold that activates the state retention process to be dynamically adjusted according to the energy requirement of each snapshot. Thus, a great proportion of the energy harvested can be spent on useful operations. Experimental results show that the system’s active time can be extended up to 17x for Flash-based systems and 92.2% for FRAM-based systems, compared to saving the entire system state, with an area overhead of as little as 2.48%.
{"title":"Energy-Efficient Memory Tracing for State Retention in Transient Computing Systems","authors":"Theodoros D. Verykios, Domenico Balsamo, G. Merrett","doi":"10.1109/IWASI58316.2023.10164608","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164608","url":null,"abstract":"Transient computing systems, also known as intermittent computing systems, are batteryless systems powered by energy harvesting (EH) sources that do not require large energy storage for system operations. Instead, they rely on retaining their state, i.e. a snapshot, in non-volatile memory (NVM) in the event of a power outage and restoring it when the power recovers. In this paper, we first discuss the limitations of state-of-the-art techniques that attempt to minimize the amount of system state saved to NVM. Therefore, we propose a novel energy-efficient system-level approach for state retention through memory tracing based on a custom hardware module named MeTra that traces changes in the main (volatile) memory between power outages. MeTra allows the voltage threshold that activates the state retention process to be dynamically adjusted according to the energy requirement of each snapshot. Thus, a great proportion of the energy harvested can be spent on useful operations. Experimental results show that the system’s active time can be extended up to 17x for Flash-based systems and 92.2% for FRAM-based systems, compared to saving the entire system state, with an area overhead of as little as 2.48%.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129330651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164472
S. Casalinuovo, A. Buzzin, D. Caschera, Simone Quaranta, F. Federici, D. Puglisi, G. Cesare, D. Caputo
Human health has always been a major concern for science. Over the years, health research has included different areas, ranging from specific therapies to patients’ lifestyle and social information: “patient-oriented” approaches have increasingly emerged as a crucial tool for health care systems, as clearly shown during the recent SARS-CoV-2 pandemic. In this context, the synergy between different scientific and technological fields, such as biology, chemistry, physics, and engineering, is increasingly considered an essential requirement. This work presents a low cost and easy-to-use sensor of volatile organic compounds (VOCs) in exhaled breath, with the purpose of serving as a rapid, non-invasive and versatile diagnostic tool in smart medicine applications. A “lock-and-key” system relying on gold nanoparticles deposited on cotton fabric enables the detection of target molecules, whose adsorption produces variations in terms of electrical impedance. The system has been exposed to ethanol-based solutions in an experimental campaign to investigate the sensing capabilities at 1 Hz - 1 MHz frequency range. The results achieved demonstrate the feasibility in obtaining health-relevant VOCs detection based on impedance analysis.
{"title":"Enhancing breath analysis with a novel AuNP-coated cotton sensor","authors":"S. Casalinuovo, A. Buzzin, D. Caschera, Simone Quaranta, F. Federici, D. Puglisi, G. Cesare, D. Caputo","doi":"10.1109/IWASI58316.2023.10164472","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164472","url":null,"abstract":"Human health has always been a major concern for science. Over the years, health research has included different areas, ranging from specific therapies to patients’ lifestyle and social information: “patient-oriented” approaches have increasingly emerged as a crucial tool for health care systems, as clearly shown during the recent SARS-CoV-2 pandemic. In this context, the synergy between different scientific and technological fields, such as biology, chemistry, physics, and engineering, is increasingly considered an essential requirement. This work presents a low cost and easy-to-use sensor of volatile organic compounds (VOCs) in exhaled breath, with the purpose of serving as a rapid, non-invasive and versatile diagnostic tool in smart medicine applications. A “lock-and-key” system relying on gold nanoparticles deposited on cotton fabric enables the detection of target molecules, whose adsorption produces variations in terms of electrical impedance. The system has been exposed to ethanol-based solutions in an experimental campaign to investigate the sensing capabilities at 1 Hz - 1 MHz frequency range. The results achieved demonstrate the feasibility in obtaining health-relevant VOCs detection based on impedance analysis.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130634566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164443
A. Nascetti, S. Carletta, L. Schirone, D. Caputo, N. Lovecchio, G. Cesare, Nithin Maipan Davis, Thiago Baratto De Albuquerque, Pierpaolo Granello, L. Iannascoli, Serena Sansolini, M. Mirasoli, G. Impresario, A. Meneghin, J. Brucato
Preliminary results of the in-orbit characterization of an analytical payload based on a lab-on-chip device with integrated thin-film photosensors relying on chemiluminescence immunoassay is presented. The paper addresses the characterization of the main components of the analytical system based on data acquired during the AstroBio CubeSat mission launched aboard the Vega-C maiden flight in summer 2022. In particular, the performances of the on-chip thin-film sensors and the lab-on-chip front-end readout electronics are reported in detail confirming the suitability of the proposed technology for space application.
{"title":"In-orbit Characterization of a Lab-on-Chip Payload with Integrated Thin-Film Photosensors for Chemiluminescent Immunoassays aboard the AstroBio CubeSat Mission","authors":"A. Nascetti, S. Carletta, L. Schirone, D. Caputo, N. Lovecchio, G. Cesare, Nithin Maipan Davis, Thiago Baratto De Albuquerque, Pierpaolo Granello, L. Iannascoli, Serena Sansolini, M. Mirasoli, G. Impresario, A. Meneghin, J. Brucato","doi":"10.1109/IWASI58316.2023.10164443","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164443","url":null,"abstract":"Preliminary results of the in-orbit characterization of an analytical payload based on a lab-on-chip device with integrated thin-film photosensors relying on chemiluminescence immunoassay is presented. The paper addresses the characterization of the main components of the analytical system based on data acquired during the AstroBio CubeSat mission launched aboard the Vega-C maiden flight in summer 2022. In particular, the performances of the on-chip thin-film sensors and the lab-on-chip front-end readout electronics are reported in detail confirming the suitability of the proposed technology for space application.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132077326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164389
N. Lovecchio, D. Caputo, G. Cesare
In this work, we report on the fabrication and electrical characterization of junction field-effect transistors (JFETs) on flexible substrates for analogue electronics. The JFETs were realized using hydrogenated amorphous silicon (a-Si:H) as the semiconductor active material and a polyimide film as the flexible substrate. The devices were fabricated by using standard microelectronic technologies. The electrical characterization of the JFETs shows that the devices exhibit good performance in terms of output characteristics, making them suitable for the realization of low-power analog circuits.
{"title":"Fabrication of Junction Field-Effect Transistors on a Flexible Substrate by Using Hydrogenated Amorphous Silicon","authors":"N. Lovecchio, D. Caputo, G. Cesare","doi":"10.1109/IWASI58316.2023.10164389","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164389","url":null,"abstract":"In this work, we report on the fabrication and electrical characterization of junction field-effect transistors (JFETs) on flexible substrates for analogue electronics. The JFETs were realized using hydrogenated amorphous silicon (a-Si:H) as the semiconductor active material and a polyimide film as the flexible substrate. The devices were fabricated by using standard microelectronic technologies. The electrical characterization of the JFETs shows that the devices exhibit good performance in terms of output characteristics, making them suitable for the realization of low-power analog circuits.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123570890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164301
L. Torsi
A large millimeter-wide electronic interface can detect at a single-molecule/entity limit-of-detection. The technology is called SiMoT - Single-Molecule with a large Transistor [1]. So far, antigens (Immunoglobulins, C-reactive proteins, spike 1, HIV p-24), antibodies (anti-immunoglobulins, anti-spike1), peptides, viruses (SARS-Cov-2), bacteria (Xylella fastidiosa), and even DNA strands (KRAS, miR-182) have been detected. Selectivity is assured by covering the gate electrode with a large number (1011-1012/cm2) of recognition elements to affinity binding the target element.
{"title":"Single-protein large area detections: from mechanism to applications in the clinics","authors":"L. Torsi","doi":"10.1109/IWASI58316.2023.10164301","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164301","url":null,"abstract":"A large millimeter-wide electronic interface can detect at a single-molecule/entity limit-of-detection. The technology is called SiMoT - Single-Molecule with a large Transistor [1]. So far, antigens (Immunoglobulins, C-reactive proteins, spike 1, HIV p-24), antibodies (anti-immunoglobulins, anti-spike1), peptides, viruses (SARS-Cov-2), bacteria (Xylella fastidiosa), and even DNA strands (KRAS, miR-182) have been detected. Selectivity is assured by covering the gate electrode with a large number (1011-1012/cm2) of recognition elements to affinity binding the target element.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126426060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164473
V. D. Meo, Marika Iencharelli, M. Moccia, A. Crescitelli, G. Tommasini, A. Tino, C. Tortiglione, V. Galdi, I. Rendina, E. Esposito
An innovative pixeled plasmonic metasurface (MS) has been developed for surface-enhanced infrared absorption (SEIRA) spectroscopy. The MS is comprised of different pixels, each designed to monitor a specific region of the electromagnetic spectrum. These pixels are engineered with plasmonic resonances that match the Amide I and Amide II vibrational bands in the range of 1500-2000 cm-1. The proposed MS allowed a label-free spectroscopic characterization of a solution of biofibers isolated from cultured fibroblasts treated with an oligothiophene based oligomer. The reflection spectra acquired on areas containing a biofiber show the presence of the typical Amide I and Amide II vibrational bands, while reflection spectra acquired outside the fibers show no signal. Additionally, the evaluated enhancement factor (up to 1.4·103) enables the detection of very small amounts of material bound on the proposed platform, as in the case of a biofiber placed on the nanoantennas composing the MS pixels.
{"title":"Plasmonic Metasurface as Surface Enhanced InfraRed Absorption Spectroscopy Platform for Biosensing Applications","authors":"V. D. Meo, Marika Iencharelli, M. Moccia, A. Crescitelli, G. Tommasini, A. Tino, C. Tortiglione, V. Galdi, I. Rendina, E. Esposito","doi":"10.1109/IWASI58316.2023.10164473","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164473","url":null,"abstract":"An innovative pixeled plasmonic metasurface (MS) has been developed for surface-enhanced infrared absorption (SEIRA) spectroscopy. The MS is comprised of different pixels, each designed to monitor a specific region of the electromagnetic spectrum. These pixels are engineered with plasmonic resonances that match the Amide I and Amide II vibrational bands in the range of 1500-2000 cm-1. The proposed MS allowed a label-free spectroscopic characterization of a solution of biofibers isolated from cultured fibroblasts treated with an oligothiophene based oligomer. The reflection spectra acquired on areas containing a biofiber show the presence of the typical Amide I and Amide II vibrational bands, while reflection spectra acquired outside the fibers show no signal. Additionally, the evaluated enhancement factor (up to 1.4·103) enables the detection of very small amounts of material bound on the proposed platform, as in the case of a biofiber placed on the nanoantennas composing the MS pixels.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126581901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164463
Tien Van Nguyen, Aengus Daly, F. O'Sullivan, Sergi Gómez-Quintana, A. Temko, E. Popovici
Neonatal seizures are a critical problem globally, which can lead to long-term developmental and neurological disabilities or even death. Early detection of seizures is crucial for preventing these outcomes by enabling timely intervention. However, clinical detection of neonatal seizures is challenging due to the lack of physical symptoms and limited access to experts in EEG analysis. Artificial Intelligence (AI) has emerged as a popular tool to assist medical professionals in interpreting EEG signals and detecting seizures. A novel method of AI assisted EEG sonification was introduced to compensate for the lack of explainability in AI’s decisions. This method uses sound to detect seizures intuitively while exploiting AI’s effectiveness as an attention mechanism. Besides low power consumption, the real-time operating capability is also essential for adapting this algorithm in clinical settings, which is unattainable with the offline processing approach used in previous studies. This study presents a scalable and real-time adaptation of this algorithm with an ultra-low power implementation. This application provides continuous audio output for medical workers, allowing for immediate access to audio analysis of the EEG signals. An on-chip ultra-low power neural network accelerator enables the implementation to scale up the number of monitored EEG channels. The real-time algorithm has an average power consumption of 13 milliwatts, allowing it to operate for more than eleven days on a mobile phone battery with a capacity of 3500 mAh.
{"title":"A real-time and ultra-low power implementation of an AI-assisted sonification algorithm for neonatal EEG","authors":"Tien Van Nguyen, Aengus Daly, F. O'Sullivan, Sergi Gómez-Quintana, A. Temko, E. Popovici","doi":"10.1109/IWASI58316.2023.10164463","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164463","url":null,"abstract":"Neonatal seizures are a critical problem globally, which can lead to long-term developmental and neurological disabilities or even death. Early detection of seizures is crucial for preventing these outcomes by enabling timely intervention. However, clinical detection of neonatal seizures is challenging due to the lack of physical symptoms and limited access to experts in EEG analysis. Artificial Intelligence (AI) has emerged as a popular tool to assist medical professionals in interpreting EEG signals and detecting seizures. A novel method of AI assisted EEG sonification was introduced to compensate for the lack of explainability in AI’s decisions. This method uses sound to detect seizures intuitively while exploiting AI’s effectiveness as an attention mechanism. Besides low power consumption, the real-time operating capability is also essential for adapting this algorithm in clinical settings, which is unattainable with the offline processing approach used in previous studies. This study presents a scalable and real-time adaptation of this algorithm with an ultra-low power implementation. This application provides continuous audio output for medical workers, allowing for immediate access to audio analysis of the EEG signals. An on-chip ultra-low power neural network accelerator enables the implementation to scale up the number of monitored EEG channels. The real-time algorithm has an average power consumption of 13 milliwatts, allowing it to operate for more than eleven days on a mobile phone battery with a capacity of 3500 mAh.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133412678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-08DOI: 10.1109/IWASI58316.2023.10164482
Kyle van Oosterhout, Martijn Timmermans, M. Fattori, E. Cantatore
This paper introduces a source degeneration technique using a diode-connected transistor as degeneration device rather than a conventional resistor improves the robustness against changes in biasing condition and temperature, and removes the need for calibration. The method is validated using an analytical model, as well as with simulations, both at very low bias currents (where the analytic exponential model matches the behaviour of the transistor very well) as well as closer to the threshold. The method shows an improvement of 6dB to 20dB in linearity when variation of bias current and temperature of 20% are considered. Using this technique would thus enable highly linear, power efficient, open-loop amplifiers without the need for calibration systems, which have an unavoidable power and area overhead.
{"title":"Transistor Based Source Degeneration: A Calibration-less Open-Loop Linearization Technique","authors":"Kyle van Oosterhout, Martijn Timmermans, M. Fattori, E. Cantatore","doi":"10.1109/IWASI58316.2023.10164482","DOIUrl":"https://doi.org/10.1109/IWASI58316.2023.10164482","url":null,"abstract":"This paper introduces a source degeneration technique using a diode-connected transistor as degeneration device rather than a conventional resistor improves the robustness against changes in biasing condition and temperature, and removes the need for calibration. The method is validated using an analytical model, as well as with simulations, both at very low bias currents (where the analytic exponential model matches the behaviour of the transistor very well) as well as closer to the threshold. The method shows an improvement of 6dB to 20dB in linearity when variation of bias current and temperature of 20% are considered. Using this technique would thus enable highly linear, power efficient, open-loop amplifiers without the need for calibration systems, which have an unavoidable power and area overhead.","PeriodicalId":261827,"journal":{"name":"2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130364795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：