Simple front‐end interfacing circuit for low‐voltage microelectronics. Issue 5 (1st February 2014)

• Record Type: Journal Article
• Authors: Das, K.; Lehmann, T.
• Is Part Of: Electronics letters. Volume 50:Issue 5(2014)
• Page Start: 349
• Page End: 351
• Publication Date: 2014-02-01
• Subjects: low‐power electronics -- CMOS integrated circuits -- integrated circuit design; Anderson loop -- wheatstone bridge -- low‐voltage low‐power CMOS microelectronics -- sensor interface topology -- low‐voltage microelectronics -- front‐end interfacing circuit; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.3523
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.