Title :
Design and noise analysis of an automotive accelerometer
Author :
Joseph, Eric D. ; Kar, Barun K. ; Rohrkemper, Richard ; Ger, Muh-ling
Author_Institution :
Motorola Inc., Arizona, AZ, USA
Abstract :
The MMAS40G is a highly miniaturized accelerometer developed for automotive applications. This two-chip system includes a capacitive micromechanical silicon chip and an associated CMOS integrated circuit for interfacing and signal conditioning each with a die size of 130 mil 2. The accelerometer requires a 5 V power supply and consumes 3.8 mA of quiescent current. The frequency response is flat from dc to 400 Hz and exhibits a 4-pole rolloff beyond 400 Hz. A noise analysis of the circuitry is presented herein
Keywords :
CMOS analogue integrated circuits; accelerometers; automotive electronics; integrated circuit noise; microsensors; 0 to 400 Hz; 3.8 mA; 5 V; CMOS integrated circuit; MMAS40G; Si; automotive accelerometer; capacitive micromechanical silicon chip; design; frequency response; interface circuitry; noise analysis; signal conditioning circuitry; two-chip system; Accelerometers; Automotive applications; Automotive engineering; CMOS integrated circuits; Circuit noise; Frequency response; Integrated circuit noise; Micromechanical devices; Power supplies; Silicon;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.539828
