Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Analog-to-Digital Converters (ADCs)"”.
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Code-error calibration techniques for two-step flash analog-to-digital converters
Flash-type analog-to-digital converters (ADCs) have been extensively used for high-speed applications such as high-performance TVs, image recognition, radar, and medical instrumentation. However, the linearity of these state-of-the-art flash-type ADCs has been limited to 10 bits by ratio mismatch …
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A Parallel Architecture for Analog-to-Digital Conversion with Improved Dynamic Range
In this thesis, a parallel architecture for Analog-to-Digital Converters (ADCs) is developed to increase the system dynamic range. The proposed architecture is a critical component for a Continuous Wave Stepped Frequency (CWSF) radar system. Existing Commercial Off-The-Shelf (COTS) components are …
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Optimization of tunable silicon compatible microring filters
Microring resonators can be used as pass-band filters for wavelength division demultiplexing in electronic-photonic integrated circuits for applications such as analog-to-digital converters (ADCs). For high quality signal transmission, the resonant frequency of the filter has to be held at certain …
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Redundant analog to digital conversion architectures in CMOS technology
… with robust, high performance and scalable Analog-to-Digital Converter (ADCs), that can be considered as one of the main blocks in many systems, since they are mandatory to make the link between the analog outside world and the evermore-ubiquitous digital computer world. The design of these …
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A reconfigurable analog-to-digital converter for a mobile receiver
… standards is increasingly leaning towards higher data transmission rates. The boundaries between digital and analog signal processing is impending closer to the antenna, therefore aiming for a software-defined radio solution. In terms of analog-to-digital converters (ADCs) of mobile …
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A SEIR-based ADC built-in-self-test and its application in ADC self-calibration
… is one of the fundamental production tests used to measure DC performance of analog to digital converters (ADCs). It comes with high test equipment cost. An ADC built-in-self-test (BIST) is an attractive solution. However the stringent linearity requirement for an on-chip signal generator has …
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A NOVEL DESIGN OF AN ALL-OPTICAL BISTABLE DEVICE USING A SINGLE ACTIVE ELEMENT
… all-optical information processing devices, is to develop low power and fast responding elements. Specically, in the eld of analog to digital converters (ADCs), higher modulation rates as well as enhanced power eciency are desired. The key component in such circuits, is the bistable switching …
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Frequency selective analog to digital converter design : optimality, fundamental limitations, and performance bounds
… thesis, the problem of analysis and design of Analog to Digital Converters (ADCs) is studied within an optimal feedback control framework. A general ADC is modeled as a causal, discrete-time dynamical system with outputs taking values in a finite set. The performance measure is defined as the …
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Successive-approximation-register based quantizer design for high-speed delta-sigma modulators
High-speed delta-sigma modulators are in high demand for applications such as wire-line and wireless communications, medical imaging, RF receivers and high-definition video processing. A high-speed delta-sigma modulator requires that all components of the delta-sigma loop operate at the desired …
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Efficient, Accurate, and Flexible PIM Inference through Adaptable Low-Resolution Arithmetic
Processing-In-Memory (PIM) accelerators have the potential to efficiently run Deep Neural Network (DNN) inference by reducing costly data movement and by using resistive RAM (ReRAM) for efficient analog compute. Unfortunately, overall PIM accelerator efficiency and throughput are limited by …
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Analog-to-Digital Converters for Secure and Emerging AIoT Applications
… development of novel energyefficient hardware. Analog neural networks (ANNs) with in-memory computing (IMC) using resistive random-access memory (RRAM) are promising architectures to reduce latency and increase energy efficiency for IoT devices. However, interface circuitry, including …
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Flash analog-to-digital converters with time-based techniques
High-speed medium-resolution flash analog-to-digital converters (ADCs) are in high demand in today's wireless and wireline systems. Conventional flash ADCs suffer from limited resolution and high power consumption. This thesis investigates time-based techniques that enhance the performance of a …
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A Low-Power, Variable-Resolution Analog-to-Digital Converter
Analog-to-digital converters (ADCs) are used to convert analog signals to the digital domain in digital communications systems. An ADC used in wireless communications should meet the necessary requirements for the worst-case channel condition. However, the worst-case scenario rarely occurs. As a …
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Cmos Design of an 8-Bit 1MS/S Successive Approximation Register ADC
… integrated circuit technologies has paved a way to develop smaller and energy efficient biomedical devices which has put stringent requirements on data acquisition systems. These implantable devices are compact and have a very small footprint. Once implanted these devices need to rely on …
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System demonstration of an optically-sampled, wavelength-demultiplexed photonic analog-to-digital converter
The performance of electronic analog-to-digital converters (ADCs) at high sampling rates is fundamentally limited by the timing jitter of electronic clocks. To circumvent this limitation, one method is to exploit the orders-of-magnitude lower timing jitter of mode-locked lasers and implement …
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Machine learning for analog/mixed-signal IC design : scaling from circuits to systems
Analog and mixed-signal integrated circuits are widely used in many emerging applications, and the increasing demand calls for a shorter design cycle and time-to-market. Traditionally the design process is dominated by manual efforts and is very time-consuming, which involves design experts …
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Techniques for low-power high-performance ADCs
Analog-to-digital converters (ADCs) are essential building blocks in many electronic systems which require digital signal processing and storage of analog signals. Traditionally, ADCs are considered a power hungry circuit. This thesis investigates ADC design techniques to achieve high-performance …
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Mitigating timing noise in ADCs through digital post-processing
The accuracy of analog-to-digital converters (ADCs) is greatly affected by the uniformity of the times at which samples of the analog input signal are taken. The error in the sample times, known as jitter, or timing noise, has a non-linear, time-varying and input-dependent effect on the sample …
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Low-power high-performance SAR ADC with redundancy and digital background calibration
… that require high-speed and high-accuracy analog-to-digital converters (ADCs). In SAR ADCs, the key linearity and speed limiting factors are capacitor mismatch and incomplete digital-to-analog converter (DAC)/reference voltage settling. In this the- sis, a sub-radix-2 SAR ADC is presented …
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A superconducting bandpass delta-sigma modulator for direct analog-to-digital conversion of microwave radio
Direct analog-to-digital conversion of multi-GHz radio frequency (RF) signals is the ultimate goal in software radio receiver design but remains a daunting challenge for any technology. This thesis examines the potential of superconducting technology for realizing RF analog-to-digital converters …
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