4.3 μW 10 fA‐sensitivity dual‐mode current converter for implantable glucose monitoring. Issue 19 (2nd September 2015)

• Record Type: Journal Article
• Authors: Tan, Xi; Chen, Xianliang; Zhang, Yiwu; Wang, Junyu; Min, Hao; Huang, Yue; Mason, Andrew J.
• Is Part Of: Electronics letters. Volume 51:Issue 19(2015)
• Page Start: 1484
• Page End: 1486
• Publication Date: 2015-09-02
• Subjects: sigma‐delta modulation -- low‐power electronics -- radiofrequency identification -- sugar -- patient monitoring -- biomedical electronics -- biomedical equipment -- electrochemical sensors; voltage 1.5 V -- power 4.26 muW -- current 10 fA to 1 nA -- power 4.3 muW -- input current sensitivity -- dual‐slope converter mode -- incremental sigma delta converter mode -- radiofrequency identification -- implantable electrochemical glucose sensor -- low‐power high‐sensitive dual‐mode current converter; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2238
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A low‐power, high‐sensitive current converter for implantable electrochemical glucose sensor tags based on radio frequency identification is presented. The current converter can work in the incremental sigma delta (ΣΔ) converter mode or the dual‐slope converter mode. The two modes can be switched automatically according to the input current value for the target measuring range from 10 fA to 1 nA. The dual‐mode converter offers a 10 fA‐input current sensitivity, 100 dB dynamic range and consumes 4.26 μW of power from a 1.5 V supply.