Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/195249
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Fast background calibration of sampling tming skew in SHA-less pipeline ADCs |
Autor: | Ginés, Antonio J. CSIC ORCID; Peralías, E. CSIC ORCID ; Rueda, Adoración CSIC ORCID | Palabras clave: | Digital clock-skew calibration sampling timing-skew errors sample-and-hold amplifier (SHA)-less pipeline analog-to-digital converter (ADC) |
Fecha de publicación: | 14-jul-2017 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE Transactions on Very Large Scale Integration (VLSI) Systems 25(10): 2966-2970 (2017) | Resumen: | This brief presents a digital calibration technique for compensating timing-skew errors between the sub-ADC and the MDAC in the first stage of sample-and-hold amplifier (SHA)-less pipeline ADCs. In the presence of clock-skew errors, sub-ADC comparators produce time-variant offsets depending on the input-signal slope at the sampling instants. These increase residue excursions at the MDAC output, potentially causing overranging and an increment in nonlinear errors. This paper derives close analytical expressions for these effects. The proposed method uses the overranging information to perform a low-cost estimation and correction of the skew error with the following features: 1) very fast convergence (in the order of 1-k input samples); 2) indirect evaluation of the skew error signal, without any previous knowledge of the input signal's frequency distribution; and 3) relatively simple digital logic-basically, two digital comparators and one small accumulator. The method was verified in behavioral and transistor-level simulations. As a demonstrator, its implementation in a 1.8-V 80-dB SNDR 100-Msps SHA-less pipeline ADC in a 0.18-μm CMOS process is shown. | Versión del editor: | https://doi.org/10.1109/TVLSI.2017.2718625 | URI: | http://hdl.handle.net/10261/195249 | DOI: | 10.1109/TVLSI.2017.2718625 | ISSN: | 1063-8210 | E-ISSN: | 1557-9999 |
Aparece en las colecciones: | (IMSE-CNM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
2
checked on 06-may-2024
WEB OF SCIENCETM
Citations
1
checked on 19-feb-2024
Page view(s)
153
checked on 18-may-2024
Download(s)
25
checked on 18-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.