Open AccessSimple front‐end interfacing circuit for low‐voltage microelectronics
Author(s) -
Das K.,
Lehmann T.
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.3523
Subject(s) - interfacing , microelectronics , electronic engineering , cmos , wheatstone bridge , low voltage , computer science , electrical engineering , interface (matter) , sensitivity (control systems) , front and back ends , engineering , scalability , application specific integrated circuit , voltage , topology (electrical circuits) , computer hardware , bubble , maximum bubble pressure method , database , parallel computing , resistor , operating system
A new sensor interface topology is presented that is particularly attractive for integration into modern low‐voltage low‐power CMOS microelectronics. The new circuit is inherently linear and provides better gain, sensitivity and dynamic range than the widely used Wheatstone bridge. The proposed structure not only offers all the benefits of the current‐driven Anderson loop, but also outperforms the latter in terms of output range, sensitivity and design simplicity. In addition, the new architecture is scalable to the interface with multiple sensor elements with very little or no extra circuit overhead.