In this work a novel architecture for the design of compact instrumentation amplifier is described. The low offset and low noise characteristics of the proposed amplifier make it particularly suitable for interfacing thermopile-based MEMS sensors. The circuit consists in a fully differential 2nd order low pass Gm-C filter, properly modified to provide gain and incorporate chopper modulation. The validity of the approach is proven by means of simulations performed on a prototype designed with a commercial CMOS process. © 2012 Springer Science+Business Media, LLC.
|Titolo:||Compact low noise interfaces for multichannel MEMS thermal sensors|
|Anno del prodotto:||2012|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|