The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, a CMOS monolithic light to sigma-delta modulator for environmental monitoring applications is newly proposed. The proposed chip is attractive due to the fact that analog processing circuits and light sensor are integrated robustly and compactly. The output signal of the proposed chip is a pulse stream, it could be easily sent over a wide range of transmission media, such as PSN, radio,...
In this paper, a new approach toward the design of a memristor based nonvolatile static random-access memory (SRAM) cell using a combination of memristor and metal-oxide semiconductor devices is proposed. Memristor and MOSFETs of the Taiwan Semiconductor Manufacturing Company's 180-nm technology are used to form a single cell. The predicted area of this cell is significantly less and the average read–write...
In this paper, single operational transresistance amplifier (OTRA) based biquadratic filter configuration is proposed. The topology can be used to synthesize low pass, high pass and band pass filter functions with appropriate admittance choices. This configuration can implement filters with high quality factor which can be controlled independent of angular frequency. Workability of the proposed biquad...
Conductance variations in nanoelectronic resistive switches seriously affect the performance of hybrid CMOS/memristive circuits. In order to capture cycle-to-cycle variability by circuit simulation a standard model was extended for resistive switches based on the electrochemical metallization effect. The extension incorporates an additional process that simulates the randomness of the filament growth...
Planar fully-depleted SOI technology is becoming mainstream within STMicroelectronics, targeting modern mobile and consumer multimedia markets. This technology combines high performance and low power consumption, complemented by an excellent responsiveness to power management design techniques. The fabrication process is comparatively simple and is a low-risk evolutionary step from conventional planar...
This paper describes the use of moderate inversion for selected MOS transistors in a two-stage CMOS amplifier to achieve high voltage gain, low thermal noise, and fast settling time at minimum power consumption. A detailed circuit analysis, implemented in a MATLAB design tool, is presented to find the optimal inversion level for MOS transistors. The analysis and design tool are illustrated for a fully...
In this paper a new CMOS realization of ZC-CG-CDBA (Z Copy-Controlled Gain-Current Differencing Buffered Amplifier), a recently published active element, is proposed. In addition, the performance of the circuit designed is demonstrated on a second order single input-three output filter example employing two ZC-CG-CDBA elements. The natural frequency and the quality factor of the filter are adjustable...
A configuration for the realization of voltage mode second-order filters employing a single second generation inverting current conveyor as the active element is presented. This topology can synthesize lowpass, highpass, bandpass, notch and allpass filtering functions. Theoretical analysis is verified with SPICE simulation results.
Memristor is a passive two terminal electronic device that maintains a functional relationship between the time integrals of current and voltage. Memristor theory was proposed and described by Leon Chua in 1971. But the first practical implementation has been realized by Williams' group at HP laboratory in 2008. Memristor has drawn the worldwide attention after HP released its invention. This paper...
Hybridization of Single Electron Transistor (SET) with CMOS technology offers new functionalities, which are very difficult to achieve either by pure SET or by pure CMOS approaches. This paper, for the first time, proposes the realization of all the basic logic gates with the help of a single SET-MOS hybrid logic circuit. The basic aim of the present work is to achieve a SET-CMOS integration based...
We analyzed the delay failure induced in standard-cell ASICs by total-ionizing dose. We developed a novel cell-level fault model for delay failures. We used this fault model to identify worst-case test vectors (WCTV) for delay failures induced in ASIC devices exposed to total ionizing dose. The fault model was experimentally validated using SPICE simulation and total dose data. We introduced a fast...
A mixed-mode three phase sinusoidal oscillator (MTSO) employing Second Generation Dual-X Current Conveyor (DXCCII) as the active element is presented. A feedback scheme consisting of two lossy integrators followed by a lossless inverting integrator is employed to obtain three voltage-mode and three current-mode sinusoidal signals simultaneously. The oscillation conditions and oscillation frequencies...
A non-linear feedback neural network for graph colouring problems is presented. The proposed circuit employs non-linear feedback, in the form of unipolar comparators realized using OTAs and diodes, to introduce transcendental terms in the energy function ensuring fast convergence to the solution. PSPICE simulation results on various random graphs have been presented.
In this paper a fully CMOS implementation of current-mode full-wave precision rectifier is presented. The structure is generally based on the recently presented Lazzaro's winner-takes-all (WTA) circuit. The rectifier has been implemented using the 0.35 μm CMOS technology and its behavior verified by SPICE. The simulation results shown feasibility to process signals of frequencies up to 20 MHz.
Predictive Technology Model (PTM) files estimate the behavior of sub-micron transistors. They are generated by scaling down from larger known technology nodes. Since PTM's can be used in conjunction with CAD programs, circuit designers are able to characterize nano-CMOS circuits even before the technology is available for manufacturing. To facilitate the extraction of PTM's, online tools such as the...
This study describes the design of a multiphase sinusoidal oscillator (MSO) using CCCCTA-based allpass filters with grounded capacitors. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled. The proposed MSO provides 2n (n≥2) phase signals that are equally spaced in phase and of equal amplitude. The circuit requires one CCCCTA, one electronic resistor and...
This paper presents a new CMOS current-feedback operational amplifier based on the adoption of the MOS tube in order to improve slew-rate. The cascode circuit was used to decrease the influence of power supply. Resistance feedback was used in the output stage to improve its load driving capability. Simulation results of the CFOA using BSM3's 0.25um CMOS process parameters with PSPICE, result in a...
In this paper, an IgE antigen concentration measurement system using a frequency-shift readout method for a two-port FPW (flexural plate-wave) allergy biosensor is presented. The proposed frequency-shift readout method adopts a peak detecting scheme to detect the resonant frequency. A linear frequency generator, a pair of peak detectors, two registers, and an subtractor are only needed in our system...
The following abstracts are given: Optimized Germanium Co-Implant with B2H6 PLAD for Better Advanced PMOS Device Performance; Design of low noise CMOS charge pump with adjustable output voltage and adjustable power; Measurement and Simulation of Various Geometries of LTCC Electron Hop Funnels; Efficient Design and Synthesis of Decimation Filters for Wideband Delta-Sigma ADCs; A Novel Material Solution...
Much excitement has been generated over the potential uses of chalcogenide glasses and other materials in circuits as “memristors” or as non-volatile memories. The memristor is a fourth passive two terminal electronic device, postulated by Leon Chua in 1971 and rediscovered in 2008. Our Conductive Bridge Memristor (CBM) changes its resistance in response to current passing through it by building up...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.