Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
The following topics are dealt with: analog-to-digital converters; system-level-integration technology; dielectric properties of materials; environmental monitoring; medical measurements; medical instrumentation; built-in test; self-test; electromagnetic measurements; instrumentation and sensors for farming; system-on-chip integrated circuits; RF and microwave moisture sensing applications; data acquisition;...
A continuous digital calibration technique for pipeline analog-to-digital converters (ADCs) is presented. The scheme utilizes an existing digital calibration algorithm and extends it to work in real-time. This is accomplished by introducing two additional stages at the end of the pipeline which are used only during calibration process. Calibration scheme is transparent to the overall system and is...
Multisines have proven to be very useful for fast and accurate measurements, especially when studying the nonlinear behavior of a device under test (DUT). However, in most papers, they are applied to an analog DUT. This paper deals with some problems that can arise when designing experiments for measuring state-of-the-art analog to digital converters (ADCs) with multisines. It will be explained that...
This paper describes a new differential current memory cell which is based on the Miller effect and an interleaved ADC architecture. As far as the CMC is concerned, it was pointed out that the opamp design is not an issue to achieve high performances. Simulation results show good performances for sampling rates up to 20MS/s (assuming 22ns for both sampling and holding mode) and relatively large current...
This paper presents a design synthesis and performance measurement of a 4-bit pipelined flash analog-to-digital converter (ADC). The preliminary results show the ADC in 130 nanometer CMOS. CMOS technology has superior performance of sampling rate of 2.5 GHz for input signal bandwidth of 1 GHz. For the purpose of design reuse, a general architecture and synthesis flow of the ADC is proposed. One of...
We report on continued efforts to model the distortion behavior of custom-designed digitizing samplers for accurate measurement of dynamic signals. The work is part of ongoing efforts at the National Institute of Standards and Technology (NIST) to advance the state of the art in waveform sampling metrology. In this paper, we describe an analytic error model for a sampler having a -3 dB bandwidth of...
Wave pipelining is a technique which can be used to speed up the circuit without insertion of storage elements, but because of that fact, needs to be more tightly controlled when being designed. This paper - taking the wave pipeline design constraints into account - looks to automate the generation of wave pipelined design netlists through synthesis and delay balancing scripts. The results show less...
A study on measurement configurations for the estimation of power consumption of processing systems is presented in this work. The problem addressed is to measure the energy that a digital system consumes for a numerous number of clock cycles and to assign this consumption to a specific group of instructions. This kind of energy measurement provides the information for determining the energy consumption...
In this paper, a new architecture of distributed embedded memory cores for SoC is proposed and an effective memory repair method by using the proposed spare line borrowing (software-driven reconfiguration) technique is investigated. It is known that faulty cells in memory core show spatial locality, also known as fault clustering. This physical phenomenon tends to occur more often as deep submicron...
Burn-in is currently the most popular form of accelerated testing in the semiconductor industry. It subjects devices under test to accelerated temperature and voltage stresses to screen so-called 'infant mortalities' (latent failures). However, burn-in incurs high cost and turnaround time. This paper presents a methodology for burn-in test reduction based on the extended use of the high-voltage stress...
In modern deep sub-micron (DSM) circuits, signal crosstalk can arise between two long parallel wires. Dynamic programmable logic arrays (PLAs) may suffer crosstalk noises that will cause the circuit to malfunction due to charge loss. In this paper, based on the characteristics of dynamic PLA crosstalk noises, we present an automatic test pattern generation (ATPG) method to detect the maximum crosstalk...
When designing devices at microwave frequencies, the characteristics of printed circuit board materials should be well known in order to attain exact functionality. The characterization can be carried out for example with T-resonator test method. In this paper, microstrip T-resonator test method is analyzed. The analysis is based on literature search and experimental research, and the practicable...
The embedded modulated scatterer technique (MST) is an innovative tool which can be used for microwave dielectric characterization of infrastructure and composite structures. By impinging a microwave signal on a loaded thin dipole antenna embedded in a material whose dielectric properties are sought, the resulting reflection data can be used to inversely solve for the dielectric properties of interest...
Real-time complex permeability and permittivity measurement and instantaneous examination of the results are possible with the help of modern measurement equipments like vector network analyzer and computer software control. In this paper a simple procedure with the combination of hardware and software tools is presented for measuring the material properties with sample material filled coaxial and...
The various loss aspects of the parallel-plate microwave dielectric resonator for the TE01delta mode is studied from a modified field model. The calculation methods of losses are discussed. The analyses on the calculated results of conductor loss and radiation loss are given. By conducting practical measurements to compare with theoretical calculation results, this modified model has shown dramatic...
In this paper we present a systematic study of complex dielectric permittivity of various semiconductor and dielectric materials, including highly absorbing substances, in Q-, V- and W-band frequencies. The measurements have been done using broadband quasi-optical millimeter wave spectrometer with a backward-wave oscillator (BWO) as a non-destructive high power tunable source of coherent radiation...
The growing interest into multi-sensor systems able to determine general attributes of a process under monitoring, has also involved the qualitative analysis of liquids; various methodologies to develop taste sensors, often referred to as "e-tongues" have been presented in the literature. The fundamental idea of this paper is to investigate how an adequate signal processing approach applied...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.