Synthesis of switched current memory cells using the nullor approach and application to the design of high performance SI sigma delta modulators
This work presents the design of switched current sigma delta modulators. The nullor approach is adopted to synthesize voltage followers used to design translinear-loop-based switched current memory cells. Besides, it is proposed an approach for computing optimal biases and sizing of transistors for...
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2008 |
| País: | México |
| Institución: | Instituto Nacional de Astrofísica, Óptica y Electrónica |
| Repositorio: | Repositorio Institucional del INAOE |
| Idioma: | inglés |
| OAI Identifier: | oai:inaoe.repositorioinstitucional.mx:1009/1107 |
| Acceso en línea: | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1107 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/Switched current technique/Switched current technique info:eu-repo/classification/Voltage follower/Voltage follower info:eu-repo/classification/Nullor/Nullor info:eu-repo/classification/Heuristic/Heuristic info:eu-repo/classification/Sigma Delta Modulator/Sigma Delta Modulator info:eu-repo/classification/cti/1 info:eu-repo/classification/cti/22 info:eu-repo/classification/cti/2203 |
| Sumario: | This work presents the design of switched current sigma delta modulators. The nullor approach is adopted to synthesize voltage followers used to design translinear-loop-based switched current memory cells. Besides, it is proposed an approach for computing optimal biases and sizing of transistors forming the modulator. This heuristic allowed us sampling a second order modulator up to 80MHz, ensuring more than 60dB of SNR. |
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