Title :
Design of CMOS chopper amplifiers for thermal sensor interfacing
Author :
Dei, Michele ; Bruschi, Paolo ; Piotto, Massimo
Author_Institution :
Dipt. di Ing. dell´´Inf., Univ. di Pisa, Pisa
fDate :
June 22 2008-April 25 2008
Abstract :
An analytical approach to the design of compact CMOS chopper amplifiers for integrated thermoelectric sensors is presented. The impact of the high resistance and low signal bandwidth of thermopile sources on the design is illustrated. The proposed approach, regarding the precision vs noise tradeoff, is applied to the design of a practical prototype, using a commercial process. Accurate electrical simulations are provided to confirm the effectiveness of the proposed design methodology.
Keywords :
CMOS integrated circuits; amplifiers; choppers (circuits); thermopiles; CMOS chopper amplifiers; high resistance; integrated thermoelectric sensors; low signal bandwidth; thermal sensor interfacing; thermopile sources; Bandwidth; Chemical sensors; Choppers; Frequency; Micromechanical devices; Signal resolution; Temperature sensors; Thermal resistance; Thermal sensors; Thermoelectricity;
Conference_Titel :
Research in Microelectronics and Electronics, 2008. PRIME 2008. Ph.D.
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-1983-8
Electronic_ISBN :
978-1-4244-1984-5
DOI :
10.1109/RME.2008.4595761
