Buscar
Mostrando ítems 31-40 de 61
Artículo
A switched-capacitor broadband noise generator for CMOS VLSI
(Institution of Engineering and Technology, 1991)
A switched-capacitor circuit is reported for the generation of broadband white noise in MOS VLSI. It is based on the implementation of a very simple chaotic discrete-time system. The concept is demonstrated via a 3ftm CMOS ...
Ponencia
Generation of technology-portable flexible analog blocks
(Institute of Electrical and Electronics Engineers, 2002)
This paper introduces a complete methodology for retargeting of analog blocks to different sets of specifications, even to different technology processes. By careful integration of the tuning process of design parameters ...
Ponencia
A 330μW, 64-channel neural recording sensor with embedded spike feature extraction and auto-calibration
(Institute of Electrical and Electronics Engineers, 2014)
his paper reports an integrated 64-channel neural recording sensor. Neural signals are acquired, filtered, digitized and compressed in the channels. Additionally, each channel implements an auto-calibration mechanism which ...
Ponencia
Current-mode piecewise-linear function generators
(Institute of Electrical and Electronics Engineers, 1996)
We present a systematic design technique for current-mode piecewise-linear (PWL) function generators. It uses two building blocks: a high-resolution current rectifier, and a programmable current amplifier. We show how to ...
Artículo
Highly Linear 2,5-V CMOS ΣΔ Modulator for ADSL+
(Institute of Electrical and Electronics Engineers, 2004)
We present a 90-dB spurious-free dynamic range sigma–delta modulator (ΣΔM) for asymmetric digital subscriber line applications (both ADSL and ADSL+), with up to a 4.4-MS/s digital output rate. It uses a cascade (MASH) ...
Ponencia
A Sub-µW Reconfigurable Front-End for Invasive Neural Recording
(Institute of Electrical and Electronics Engineers, 2019)
This paper presents a sub-μW ac-coupled reconfigurable front-end for the purpose of neural recording. The proposed topology embeds in it filtering capabilities allowing it to select among different frequency bands inside ...
Artículo
Matrix Methods for the Dynamic Range Optimization of Continuous-TimeGm-CFilters
(Institute of Electrical and Electronics Engineers, 2008)
This paper presents a synthesis procedure for the optimization of the dynamic range of continuous-time fully differential G m - C filters. Such procedure builds up on a general extended state-space system representation ...
Ponencia
An auto-calibrated neural spike recording channel with feature extraction capabilities
(The International Society for Optics and Photonics, 2011)
This paper presents a power efficient architecture for a neural spike recording channel. The channel offers a selfcalibration operation mode and can be used both for signal tracking (to raw digitize the acquired neural ...
Ponencia
A High TCMRR, Inherently Charge Balanced Bidirectional Front-End for Multichannel Closed-Loop Neuromodulation
(Institute of Electrical and Electronics Engineers, 2019)
This paper describes a multichannel bidirectional front-end for implantable closed-loop neuromodulation. Stimulation artefacts are reduced by way of a 4-channel H-bridge current source sharing stimulator front-end that ...
Ponencia
Secure communication through switched-current chaotic circuits
(Institute of Electrical and Electronics Engineers, 1995)
This paper presents the use of analog integrated circuits for secure communication based on chaos synchronization. The phenomenon is demonstrated through experimental measurements realized on silicon prototypes in a ...