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.
The level of requirements for a readout front-end electronics dedicated for X-ray imaging applications, such as: high count rate ability of input pulses, low noise, low power dissipation and low silicon area occupation noise, is still increasing. The question: what one can do to minimize silicon area and keep front-end electronics analog parameters at a desirable level at the same time, is still important...
Capacitor based DACs are common designer's choice for projects realized in nanometer technologies. Designs kits provide several devices that can be used as capacitors. However, they exhibit serious differences in terms of linearity, minimum area and sensitivity to process disturbances The paper presents analysis of capacitive divider design to be used in 8-bit DAC realized in 65 nm CMOS process. Various...
A low-voltage fully differential current-mode continuous time delta-sigma modulator is presented for application in electrochemical sensor arrays. Although a first order topology is realized by using a single differential integrator, second order noise shaping is achieved. A differential quantizer based on current controlled oscillators (CCOs) allows a current-mode implementation with high noise-immunity...
This paper presents multi-objective optimization of a front-end electronics implemented in multichannel integrated circuit for silicon sensors readout in the Silicon Tracking System in the CBM experiment at the FAIR center. We present the optimization towards low-power (< 8 mW/channel) and low-noise while keeping the channel pitch of 58 μm and minimum number of external components required for...
The aim of this paper is energy dissipation analysis in regards to supply voltage and temperature. The basis of all simulations are 12 different transistors coming from 6 different CMOS technologies (from 180nm to 14nm). Dynamic energy used to switch a gate from one state to the other was evaluated in a range of temperature for different supply voltages. In order to guarantee a realistic timing of...
Noise canceling techniques have been successfully applied to the design of modern multi-band RF-CMOS inductor-less receivers. However, low voltage supply requirements are imposing new design challenges which are pushing the operation of the MOS transistor into moderate or weak inversion, making the setup of closed sizing expressions a difficult task. This paper presents a Si2 OpenAccess based circuit...
In this paper we present a tool based approach for an aging-aware design method. Extending the gm/ID sizing method by operating point-dependent degradation caused by BTI and HCD enables an innovative design flow. This design flow considers performance characteristics for a fresh circuit and also those of a degraded circuit at design time. Once the degradation from a single transistor is computed,...
High voltage CMOS active devices inherently have a parasitic vertical bipolar transistor. The parasitic PNP structure can be activated during high-power switching operation causing a potential shift of the substrate. In this work a spice-modeling approach based on transistor layout is presented that is compatible with parasitic substrate noise propagation in Smart Power ICs. The results of the model...
In this paper we present a novel successive approximation register (SAR) analog-to-digital converter (ADC) designed for the applications that demand many such converters working in parallel in a single chip. For this reason we have put a special emphasis on a very low chip area and low power dissipation. The ADC operates in the current-mode. The digital-to-analog converter (DAC), which is one of the...
In this paper, a wide-band fully differential linear low noise amplifier (LNA) in a standard 130nm CMOS process is presented. The LNA utilizes Active Post Distortion (APD) as a voltage combiner that prepares a linear transconductance for enabling harmonic cancellation, which can also mitigate the impedance matching device noise. The impedance matching device is connected to the output transistors...
The objective of this paper it to present a work concerning a proposed design and development of an analog Pulse Width Modulation (PWM) Application Specific Integrated Circuit (ASIC) with built-in analogue control loop and PWM for DC/DC power converters used in space applications. The described circuit can be used in avionics, aerospace devices and vehicles. The paper presents the general requirements...
Reversible logic circuits are one of the solutions to the problem of conventional microelectronic technology reaching its limits. Unfortunately, efficient reversible system design requires different approaches than conventional solutions; the current methods of reversible function synthesis have certain limitations, including their complexity and scalability. This paper presents the application of...
A stable reference voltage (or current) source is a standard component of today's microelectronics systems. In particle physics experiments such reference is needed in spite of harsh ionizing radiation conditions, i.e. doses exceeding 100 Mrads and fluences above 1e15 n/cm2. After such radiation load a bandgap reference using standard p-n junction of bipolar transistor does not work properly. Instead...
The design of a 450nW bandgap temperature sensor in the 0 to 175°C range is presented. The design demonstrates a leakage current compensation technique that is useful for low-power designs where transistor performance is limited. The technique mitigates the effects of leakage in Brokaw bandgap references by limiting the amount of excess current that is entering the bases of the main bipolar pair due...
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.