Low-power signal processing devices for portable ECG detection

Author

Lee, Shuenn-Yuh ; Cheng, Chih-Jen ; Wang, Cheng-Pin ; Kao, Wei-Chun

Author_Institution

Department of Electrical Engineering National Chung-Cheng University Chia-Yi, Taiwan

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

1683

Lastpage

1686

Abstract

An analog front end for diagnosing and monitoring the behavior of the heart is presented. This sensing front end has two low-power processing devices, including a 5^th-order Butterworth operational transconductance-C (OTA-C) filter and an 8-bit successive approximation analog-to-digital converter (SAADC). The components fabricated in a 0.18-μm CMOS technology feature with power consumptions of 453 nW (filter) and 940 nW (ADC) at a supply voltage of 1 V, respectively. The system specifications in terms of output noise and linearity associated with the two integrated circuits are described in this paper.

Keywords

Analog-digital conversion; CMOS technology; Electrocardiography; Energy consumption; Filters; Heart; Integrated circuit noise; Integrated circuit technology; Signal processing; Voltage; Biomedical Engineering; Electric Power Supplies; Electrocardiography; Electronics, Medical; Equipment Design; Humans; Signal Processing, Computer-Assisted;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4649499

Filename

4649499