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 133 for “"analog-to-digital converter"”.
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Floating-Point Analog-to-Digital Converter
To deal with the wide dynamic rage necessary for a radio receiver or corresponding applications, but to avoid impractically high resolution at high data rates, the approach of using a floating-point analog-to-digital converter (FP-ADC) has been investigated. This approach de-links the dynamic range …
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Integrated optical analog-to-digital converter
… frequency-demultiplexed wideband analog-to-digital converter (ADC) which has potential to exceed the performance of electronic ADCs by orders of magnitude is studied analytically and numerically. The accuracy of the ADC as a function of its parameters is analyzed and impact of …
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A wide-range analog to digital converter
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1980
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Variable Precision Tandem Analog-to-Digital Converter (ADC)
<p>This paper describes an analog-to-digital signal converter which varies its precision as a function of input slew rate (maximum signal rate of change), in order to best follow the input in real time. It uses Flash and Successive Approximation (SAR) conversion techniques in sequence.</p> <p>As …
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High-Resolution Nyquist -Rate Analog -to -Digital Converter
This thesis presents a pipelined analog-to-digital converter (ADC) employing a capacitor error-averaging technique with look-ahead decision and digital error correction concepts that has been implemented in a CMOS technology to achieve high linearity and high speed. The capacitor error-averaging …
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A high-speed, folding, analog-to-digital converter
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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A low-power reconfigurable analog-to-digital converter
… concept, theory and design of a low power CMOS analog-to-digital converter that can digitize signals over a wide range of bandwidth and resolution with adaptive power consumption. The converter achieves the wide operating range by reconfiguring (1) its architecture between pipeline and …
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The Proteretic Hopfield Neural Network Analog to Digital Converter
… and the efficiency of employing these neurons in analog to digital conversion, via the Hopfield Neural Network, will be demonstrated. Traditional hysteresis is defined, generally, as the occurrence of a delayed effect when forces acting on an object are varied. It will be shown that predictive …
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High-Speed, Low-Spurious CMOS Analog -to -Digital Converter
… the application of background offset trimming to folding ADCs. Background offset trimming with a delta-sigma modulator is applied to compensate the random input offset of folding amplifiers. A subranging front-end is used in conjunction with the pipelined folding ADC to make the calibration …
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A switched-capacitor pipelined BiCMOS analog-to-digital converter
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1990.
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A time-based energy-efficient analog-to-digital converter
Dual-slope converters use time to perform analog-to-digital conversion but require 2N+1 clock cycles to achieve N bits of precision. We describe a novel algorithm that also uses time to perform analog-to-digital conversion but requires 5N clock cycles to achieve N bits of precision via a successive …
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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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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 comparator-based switched-capacitor pipelined analog-to-digital converter
A new comparator-based switched-capacitor(CBSC) technique is proposed that eliminates the need for high gain op-amps in switched-capacitor circuits. The CBSC technique replaces the op-amp in switched-capacitor circuits with a comparator and a current source. Compared to op-amps, comparators suffer …
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Front-end circuits for a photonic analog-to-digital converter
… ADCs gets limited at higher sampling rates due to sampling clock jitter, low-jitter mode-lock laser based photonic ADCs are starting to gain more attention. As well as low-jitter and high-linearity operation at very high speeds, photonic ADCs provide the opportunity to de-multiplex electrical …
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A time-interleaved Zero-Crossing-Based analog-to-digital converter
… device gain, making it increasingly difficult to realize high-speed, high-gain op-amps with a stable feedback loop. The switched capacitor multiplier circuit in pipelined ADC is one application which has been hindered by op-amp limitations. Zero Crossing Based (ZCB) switched-capacitor …
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Decimator implementation for a pipelined oversampling analog-to-digital converter
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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A clamped folded cascode amplifier for analog-to-digital converter applications
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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