Title : ( A low-power successive-approximation ADC for biomedical applications )
Authors: Mehdi Saberi , Hassan Sepehrian , Reza Lotfi , Khlil Mafinezhad ,
Full TextAbstract
A new switching algorithm is proposed in Successive Approximation Analog-to-Digital Converters (SA-ADCs) to reduce the power consumption in both DAC and comparator. This technique is more efficient in applications where the input signal has low-varying characteristics. For slow-varying samples, only the least significant bits of the new analog sample are extracted leading to power saving in both the capacitor-based DAC and the comparator. For an Electrocardiogram (ECG) signal and with the proposed structure, the simulated power consumption of the DAC, the comparator and the entire ADC for an 8-bit 10-kS/s converter are 74%, 38% and 52% less than those of a conventional architecture, respectively.
Keywords
, Successive Approximation ADC, power consumption, biomedical applications
@article{paperid:1021310,
author = {Saberi, Mehdi and Sepehrian, Hassan and Lotfi, Reza and Mafinezhad, Khlil},
title = {A low-power successive-approximation ADC for biomedical applications},
journal = {IEICE Electronics Express},
year = {2011},
volume = {8},
number = {4},
month = {February},
issn = {1349-2543},
pages = {195--201},
numpages = {6},
keywords = {Successive Approximation ADC; power consumption; biomedical applications},
}
%0 Journal Article
%T A low-power successive-approximation ADC for biomedical applications
%A Saberi, Mehdi
%A Sepehrian, Hassan
%A Lotfi, Reza
%A Mafinezhad, Khlil
%J IEICE Electronics Express
%@ 1349-2543
%D 2011
