1057739
doi
10.5281/zenodo.1057739
oai:zenodo.org:1057739
user-waset
Shigeyasu Uno
Kazuo Nakazato
Variable Input Range Continuous-time Switched Current Delta-sigma Analog Digital Converter for RFID CMOS Biosensor Applications
Boram Kim
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
continuous time
delta sigma
A/D converter
RFID
biosensor
CMOS
<p>Continuous-time delta-sigma analog digital converter (ADC) for radio frequency identification (RFID) complementary metal oxide semiconductor (CMOS) biosensor has been reported. This delta-sigma ADC is suitable for digital conversion of biosensor signal because of small process variation, and variable input range. As the input range of continuous-time switched current delta-sigma ADC (Dynamic range : 50 dB) can be limited by using current reference, amplification of biosensor signal is unnecessary. The input range is switched to wide input range mode or narrow input range mode by command of current reference. When the narrow input range mode, the input range becomes ± 0.8 V. The measured power consumption is 5 mW and chip area is 0.31 mm^2 using 1.2 um standard CMOS process. Additionally, automatic input range detecting system is proposed because of RFID biosensor applications.</p>
Zenodo
2011-03-23
info:eu-repo/semantics/article
1057738
user-waset
2700
1579538352.684542
738735
md5:a1a296568d5f2041883e3d47f2822235
https://zenodo.org/records/1057739/files/2700.pdf
public
10.5281/zenodo.1057738
isVersionOf
doi