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Proceedings Paper

Accurate DEM SC amplification of small differential voltage signal with CM level from ground to VDD
Author(s): Guijie Wang; Gerard C. M. Meijer
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Paper Abstract

In this paper a new DEM amplifier is designed to amplify the small differential voltage signal, which CM level can be from ground to VDD, using single power supply. Using switched capacitors, the small differential voltage signal can be amplified. In order to eliminate the error caused by the mismatching, dynamic element matching technique has been applied. The simulation result shows that the error caused by mismatching of the capacitors has been significantly reduced to the second order. The DEM SC amplifier has been applied to amplify the thermocouple voltage in an interface circuit for thermocouples.

Paper Details

Date Published: 21 June 2000
PDF: 7 pages
Proc. SPIE 3990, Smart Structures and Materials 2000: Smart Electronics and MEMS, (21 June 2000); doi: 10.1117/12.388913
Show Author Affiliations
Guijie Wang, Delft Univ. of Technology (Netherlands)
Gerard C. M. Meijer, Delft Univ. of Technology (Netherlands)

Published in SPIE Proceedings Vol. 3990:
Smart Structures and Materials 2000: Smart Electronics and MEMS
Vijay K. Varadan, Editor(s)

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