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Título: | In-pixel ADC for a vision architecture on CMOS-3D technology |
Autor: | Suárez, Marta CSIC ORCID; Brea, V. M.; Matas, C. D.; Carmona-Galán, R. CSIC ORCID ; Liñán-Cembrano, G. CSIC ORCID ; Rodríguez-Vázquez, Ángel CSIC ORCID | Fecha de publicación: | 2010 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE International 3D Systems Integration Conference: 1-7 (2010) | Resumen: | This paper addresses the design of an 8-bit single-slope in-pixel ADC for a 3D chip architecture intended for airborne surveillance and reconnaissance applications. The 3D chip architecture comprises a sensor layer with a resolution of 320 × 240 pixels bump-bonded to a three-tier chip on the 150 nm FDSOI CMOS-3D technology from MIT-Lincoln Laboratories. The top tier is a mixed-signal layer with 160 × 120 processing elements. The ADC is distributed between the top two tiers. The top tier contains both global and local circuitry. The ramp generation is implemented with global circuitry through an 8-bit unary current-steering DAC. The end of conversion at every pixel or processing element is triggered by a local comparator. The digital words are stored in a frame-buffer in an intermediate tier. The area of the local circuitry in the ADC is consumed by the comparator, capable of reaching less than 3 mV of resolution in less than 150 ns with less than 220 μm2, and by the memory cells, each one storing 6 8-bit words along with two additional bits in less than 50 μm × 50 μm. Every ADC conversion is performed in less than 120 μs. | Descripción: | Trabajo presentado al 3DIC celebrado en Munich del 16 al 18 de noviembre de 2010. | Versión del editor: | http://dx.doi.org/10.1109/3DIC.2010.5751464 | URI: | http://hdl.handle.net/10261/84149 | DOI: | 10.1109/3DIC.2010.5751464 | Identificadores: | doi: 10.1109/3DIC.2010.5751464 isbn: 978-1-4577-0526-7 |
Aparece en las colecciones: | (IMSE-CNM) Libros y partes de libros |
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In-Pixel ADC.pdf | 528,68 kB | Adobe PDF | Visualizar/Abrir |
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