DocumentCode
2493043
Title
A Switched Capacitor Interface for a Capacitive Microphone
Author
Jawed, S.A. ; Gottardi, M. ; Baschirotto, A.
Author_Institution
Microsystems Div., ITC-IRST, Trento
fYear
0
fDate
0-0 0
Firstpage
385
Lastpage
388
Abstract
A switched capacitor (SC) interface for a capacitive MEMS microphone is described in this paper. By properly switching the sensor, parasitic insensitive ac-coupling readout is directly performed without the need of a large bias resistor. The SC readout-circuit offers the advantages of a differential-topology for a single-ended sensor without accurate capacitor matching techniques
Keywords
capacitive sensors; microphones; readout electronics; switched capacitor networks; ac-coupling readout; capacitive MEMS microphone; differential topology; readout circuit; single-ended sensor; switched capacitor interface; Acoustic sensors; Biomembranes; Capacitive sensors; Capacitors; Circuits; Micromechanical devices; Microphones; Parasitic capacitance; Resistors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Research in Microelectronics and Electronics 2006, Ph. D.
Conference_Location
Otranto
Print_ISBN
1-4244-0157-7
Type
conf
DOI
10.1109/RME.2006.1689976
Filename
1689976
Link To Document