An Energy-Efficient Bridge-to-Digital Converter for Implantable Pressure Monitoring Systems
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Minimally invasive monitoring of the electrical activity of specific cortical areas using implantable microsystems offers the promise of diagnosing neurological diseases, as well as detecting and identifying neural activity patterns which are specific to a ...
Among different analog-to-digital converter (ADC) architectures pipelined ADCs are the most suited for medium sampling frequencies (50-300MSPS) and medium resolutions, i.e. 8 to 14 bits. Having the lowest figure-of-merit (FOM) in its bandwidth and resoluti ...
An event-driven analogue-to-digital converter (ADC) architecture is proposed. The proposed architecture has less sensitivity to amplifier and DAC nonlinearity, and reduces the swing and dynamic common-mode range requirement of the operational transconducta ...
This research work deals with the design of linear CMOS RF power amplifiers. Two important aspects are treated: efficiency enhancement and frequency-tunable capability. For this purpose, two different integrated circuits were realized in a 0.11 µm technolo ...
In this paper, the design of a low-noise amplifier (LNA) for a 32x32 pixel microelectrode array (MEA) is presented. Its gain and noise amount to 50 dB and 10 Vrms, respectively, at a bandwidth of 66 kHz. The LNA consumes less than 85 uW. The integrated off ...
This paper presents a SOI Hall sensor based microsystem for energy measurement. The mixed-mode signal circuitry has been entirely designed and integrated in the experimental 0.5 mu m fully depleted SOI 3 V technology. It consists of an integrated Hall elem ...
Ultra low power circuits are in high demand in many applications especially in wireless sensor networks (WSN), where energy is scavenged from environment. WSN systems contain different blocks, such as: sensors, filters, analog-to-digital converters, very o ...
Design and optimization of a simple but efficient operational amplifier (OA) for switched-capacitor finite impulse response (SC FIR) filters are presented. The main design criteria are: proper characteristics for application in SC FIR filters, simplicity o ...
The main problem encountered in pulmonary artery banding is the difficulty in determining the optimal perimeter of the band, and sometime repeated surgical operations are required to adjust the band perimeter in order to control the pulmonary blood flow. T ...
This article presents a power-efficient and low-voltage CMOS output driver circuit based on low-voltage differential signaling (LVDS) standard. To reduce the ringing at the output of the proposed driver circuit and simultaneously keep the power consumption ...