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 159 for “"Comparator"”.
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Comparator design and analysis for comparator-based switched-capacitor circuits
… of the reduced device parasitics. An alternative comparator-based switched-capacitor circuit (CBSC) technique that eliminates the need for high gain op-amps in the signal path is proposed. The CBSC technique applies to switched-capacitor circuits in general and is compatible with most known …
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A low dispersion 2-GHz comparator
A low dispersion 2-GHz comparator is an essential part of the latest automated VLSI tester by Teradyne Inc. With each new and faster CMOS logic VLSI microchips, faster and more precise comparators are needed to verify that the static discipline is being met on the many pins of the integrated …
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A Comparator-Based Switched-Capacitor delta sigma modulator
Comparator-Based Switched-Capacitor (CBSC) is a relatively new topology that replaces op-amps in sampled-data systems with a comparator and a set of current mirrors. CBSC is expected to lower power consumption, and to avoid several delicate tradeoffs of op-amp circuits. In this paper, the original …
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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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Improving toggle rate in a rail-to-rail comparator output stage
… has driven an increase in the speed of analog comparators, a building block for many analog circuits. This paper describes the modification of one of Linear Technology's low-cost, high-speed comparators to increase the output toggle rate beyond the one hundred megahertz range. The essential …
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The design of a high precision, wide common mode range auto-zero comparator
… analysis of a high common-mode input auto-zero comparator for use in a Hot Swap controller. Comparators are essential building blocks within the current limit detection schemes of Hot Swap controllers. However, the current limit detection scheme places a sense resistor in the current path, …
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Project of a digital cryogenic current comparator bridge for high precision dc resistance measurements
… technology and the normal Direct Current Comparator bridge. Then a chapter describes the electronic circuit of the bridge. The next describes the cryogenic parts of the bridge: the flux detector, the CCC with its probe and the shields systems.
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Silicon Germanium BiCMOS Comparator Designed for Use in An Extreme Environment Analog to Digital Converter
… hardened and extreme temperature operating comparator from start to finish in the 90 nm SiGe 9HP process node. This includes the entire design flow from examining comparator topologies, to designing the initial comparator circuits, to simulating the comparator over a temperature range of …
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Design port and optimization of a high-speed SAR ADC comparator from 65nm to 0.11[mu]M
… cheaper processes. To that end, a three-stage comparator circuit for use in a digital camera SAR ADC has been ported from its original 65nm process to a 0.11[mu]m process. Its design has been analyzed and performance presented here. Additionally, an alternative latch-only architecture for the …
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Appropriate comparator in national treatment under international investment law : relevance of GATT/WTO, EU and international human rights jurisprudences
… of the determination of appropriate comparator guided by the underlying philosophies, historical evolution and relevant investment decisions. The methods applied in this thesis are doctrinal and comparative studies of international investment law and the compared jurisprudences. A …
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Predictive comparators with adaptive control
… control loop are added to a conventional comparator to greatly reduce the delay. A linear predictor feeds an estimated future signal to the comparator to compensate for the comparator's internal delay. On a cycle-by-cycle basis, an adaptive controller adjusts the comparator's bias current …
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ΜΕΛΕΤΗ ΣΥΣΤΗΜΑΤΩΝ ΕΛΕΓΧΟΥ ΣΤΡΟΦΩΝ ΚΙΝΗΤΗΡΩΝ ΣΥΝΕΧΟΥΣ ΡΕΥΜΑΤΟΣ ΜΕ ΤΗΝ ΑΡΧΗ ΤΟΥ ΒΡΟΧΟΥ ΣΥΓΧΡΟΝΙΣΜΟΥ ΦΑΣΗΣ (PLL)
… THESIS PLRS WITH TRIANGULAR AND PHASE- FREQUENCY COMPARATOR HAVE BEEN INVESTIGATED. FOR THE TRIANGULAR PHASE COMPARATOR A NEW, SIMPLE, MORE EFFICIENT MODEL IS PROPOSED HERE. THIS HAS BEEN EMPLOYEDIN THE INVESTIGATION OF THE CAPTURE PHENOMENON. EXPERIMENT HAS SHOWN THAT CAPTURE IS ATTAINED MAINLY …
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Low-power SAR ADC for biomedical portable devices
… the primary source of power dissipation is the comparator. Unlike other digital blocks such as control logic and DAC switching, the comparator’s energy consumption does not scale in the same manner with the supply voltage. Reducing power consumption in SAR ADCs with resolutions exceeding 10-bits …
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3D Micromachined Passive Components and Active Circuit Integration for Millimeter-wave Radar Applications
… and active implementations of RF monopulse comparator networks. These architectures are enabled by a high-performance three-dimensional rectangular coaxial microwave transmission line technology known as PolyStrataTM as well as silicon-based IC technologies. A number of specific components …
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Energy-efficient data converter design in scaled CMOS technology
… of the low-speed converters including the comparator; 2) techniques to develop high-speed data converters including the reference stabilization; 3) new architecture to improve the efficiency of the capacitance-to-digital converter (CDC). In the first part, a power-efficient 10-bit SAR ADC …
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Frequency synthesis using phase-controlled oscillator techniques
… of the literature assumes that the phase comparator, or error detector, of the system produces an output proportional to the sine of the phase difference. In recent years, a few articles have appeared in the literature considering a comparator that produces an output which is proportional …
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ENERGY EFFICIENT CIRCUIT TECHNIQUES FOR SUCCESSIVE APPROXIMATION REGISTER ADC
… power are consumed by CS capacitor arrays and comparator circuits. This Dissertation presents circuit techniques to reduce the power consumption of both CS capacitor array and the latch comparator during ADC operations. The impacts of the proposed techniques on ADC accuracies are analyzed and …
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Online and Built-in self-testing techniques for Field Programmable Analog Array
… Furthermore a novel programmable analog comparator is developed whose error threshold can be adaptively adjusted according to its input signal levels. It is ideal for analog online testing applications for enhanced testing accuracy due to the fact that its programmability allows the end …
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