Mixed Signal Circuits
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Design of self-checking fully differential circuits and boards
A design methodology for on-line testing analog linear fully differential (FD) circuits is presented in this work. The test strategy is based on concurrently monitoring via an analog checker the common mode (CM) at the inputs of all amplifiers. The totally self-checking (TSC) goal is achieved for linear FD implementations provided that the checker CM thresho
Publicado em: 2011
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2. Metodologia para descrição de células analógicas como IP
This work proposes a methodology for the description of analog and mixed-signal VLSI cells as intellectual property (IP) blocks. The methodology was applied on analog/mixed-signal circuitry blocks - a voltage-to-current converter and an analog-to-digital converter, previously designed in CMOS technology - as study cases. Adaptations were performed in the blo
Publicado em: 2009
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3. Mixed-signal analog-digital circuits design on the pre-diffused digital array using trapezoidal association of transistors
The mixed-signal and analog design on a pre-diffused array is a challenging task, given that the digital array is a linear matrix arrangement of minimum-length transistors. To surmount this drawback a specific discipline for designing analog circuits over such array is required. An important novel technique proposed is the use of TAT (Trapezoidal Association
Publicado em: 2007
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4. Planejamento de teste de sistemas baseados em núcleos de hardware de sinal misto usando bist
Atualmente, os sistemas eletrônicos integrados seguem o paradigma do projeto baseado em núcleos de hardware. Além de núcleos digitais, tais sistemas podem incluir núcleos analógicos, que, neste caso, dominam os requisitos de teste, como tempo de teste e número adicional de pinos. Consequentemente, há um aumento do custo total de manufatura do disposi
Publicado em: 2007
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5. Low cost BIST techniques for linear and non-linear analog circuits
Com a crescente demanda por produtos eletrônicos de consumo de alta complexidade, o mercado necessita de um rápido ciclo de desenvolvimento de produto com baixo custo. O projeto de equipamentos eletrônicos baseado no uso de núcleos de propriedade intelectual ("IP cores") proporciona flexibilidade e velocidade de desenvolvimento dos chamados "sistemas num
Publicado em: 2007
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6. Chemical communication among bacteria
Cell–cell communication in bacteria is accomplished through the exchange of chemical signal molecules called autoinducers. This process, called quorum sensing, allows bacteria to monitor their environment for the presence of other bacteria and to respond to fluctuations in the number and/or species present by altering particular behaviors. Most quorum-sens
National Academy of Sciences.
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7. Neuromorphic hardware databases for exploring structure-function relationships in the brain.
Neuromorphic hardware is the term used to describe full custom-designed integrated circuits, or silicon 'chips', that are the product of neuromorphic engineering--a methodology for the synthesis of biologically inspired elements and systems, such as individual neurons, retinae, cochleas, oculomotor systems and central pattern generators. We focus on the impl