An analogue front-end system with a low-power on-chip filter and ADC for portable ECG detection devices

Lee, S, Hong, J and Fang, Q 2012, 'An analogue front-end system with a low-power on-chip filter and ADC for portable ECG detection devices' in Richard M. Millis (ed.) Advances in Electrocardiograms - Methods and Analysis, In-Tech, Rijeka, Croatia, pp. 297-308.


Document type: Book Chapter
Collection: Book Chapters

Title An analogue front-end system with a low-power on-chip filter and ADC for portable ECG detection devices
Author(s) Lee, S
Hong, J
Fang, Q
Year 2012
Title of book Advances in Electrocardiograms - Methods and Analysis
Publisher In-Tech
Place of publication Rijeka, Croatia
Editor(s) Richard M. Millis
Start page 297
End page 308
Subjects Biomedical Instrumentation
Microelectronics and Integrated Circuits
Summary Medical diagnostic instruments can be made into portable devices for the purpose of home care, such as the diagnosis of heart disease. These assisting devices are not only used to monitor patients but are also beneficial as handy and convenient medical instruments. Hence, for reasons of both portability and durability, designers should reduce the power consumption of assistant devices as much as possible to extend their battery lifetime. However, achieving the low power requirement of the ECG sensing and the processing board for the ECG with commercial discrete components (A21-0003) is difficult because the low power consumer electronics for ECG acquisition systems are not yet available. With the help of the integrated circuit technology, the power-saving requirement of portable and durable equipment gives circuit designers the impetus to reduce the power consumption of analogue front-end circuits in ECG acquisition systems. In addition, the analogue front-end circuits, which are the interface between physical signals and the digital processor, must be operated at a low-supply voltage to be integrated into the low-voltage system-on-a-chip (SOC) system (Eshraghian, 2006). Therefore, the chapter will present two design examples of low-voltage (1 V) and low-power (<1 W) on-chip circuits including a low-pass filter (LPF) and an analogue-to-digital converter (ADC) to demonstrate the possibility of developing the low-voltage low-power ECG acquisition SOC
Copyright notice © 2012 InTech
DOI - identifier 10.5772/24678
ISBN 9789533079233
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