A fully integrated physical activity sensing circuit for implantable pacemakers

Author

Arnaud, Alfredo ; Galup-Montoro, Carlos

Author_Institution

GME-IIE, Univ. de la Republica, Montevideo, Uruguay

fYear

2004

fDate

7-11 Sept. 2004

Firstpage

151

Lastpage

156

Abstract

This paper shows the implementation of a fully integrated G_m-C 0.5-7 Hz bandpass filter-amplifier with gain G=400, for a piezoelectric accelerometer which is part of a rate adaptive pacemaker. The fabricated circuit operates up to 2 V power supply, consumes only 230 nA current, and achieves 2.1 μV_rms input noise. Detailed circuit specifications, measurements, and a comparative analysis of the system performance are presented.

Keywords

CMOS integrated circuits; accelerometers; amplifiers; analogue integrated circuits; band-pass filters; integrated circuit design; low-power electronics; medical signal processing; pacemakers; piezoelectric transducers; 2 V; 230 nA; CMOS; analogue integrated circuit; bandpass filter amplifier; implantable pacemakers; integrated physical activity sensing circuit; piezoelectric accelerometer; rate adaptive pacemaker; signal conditioning; Accelerometers; Band pass filters; Battery charge measurement; Biomedical measurements; Energy consumption; Heart; Integrated circuit measurements; Integrated circuit reliability; Pacemakers; Permission;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Circuits and Systems Design, 2004. SBCCI 2004. 17th Symposium on

Print_ISBN

1-58113-947-0

Type

conf

DOI

10.1109/SBCCI.2004.240770

Filename

1360561