Title :
A 3-channel ECG measuring system for wireless applications
Author :
Dorn, R. ; Völker, M. ; Neubauer, H. ; Hauer, J. ; Johansson, J.
Author_Institution :
Fraunhofer Inst. for Integrated Circuits IIS, Erlangen
Abstract :
This paper describes the design and implementation of an integrated frontend for electrocardiographic (ECG) systems, realized in a 0.35 mum 2P4M CMOS process. The performance is optimized to adhere to the standard IEC60601-2-47, which defines the requirements for safety and essential performance of ambulatory ECG equipment. The system consists of three channels to measure the 3 leads of a Goldberger ECG monitoring scheme, therefore a single ended design structure was chosen to minimize the power consumption. A fourth channel is included for additional measurements. Each of the four channels contains a low power multi-bit sigma-delta modulator and a low power digital filter. Three channels are equipped with a low noise preamplifier. The supply voltage can be varied from 2.4 Volt up to 3.6 Volt. With a total power consumption of less than 2 mW the circuit is designed for battery operated equipment
Keywords :
IEC standards; biomedical telemetry; digital filters; electrocardiography; medical signal processing; patient monitoring; radiocommunication; safety; sigma-delta modulation; 2.4 to 3.6 V; 2P4M CMOS process; 3-channel ECG Goldberger monitoring system; IEC60601-2-47 standards; ambulatory equipment; battery operated equipment; digital filter; electrocardiographic systems; multibit sigma-delta modulator; noise preamplifier; safety; wireless communication; CMOS process; Circuit noise; Delta-sigma modulation; Digital filters; Digital modulation; Electrocardiography; Energy consumption; Monitoring; Power measurement; Safety devices;
Conference_Titel :
Medical Measurement and Applications, 2006. MeMea 2006. IEEE International Workshop on
Conference_Location :
Benevento
Print_ISBN :
1-4244-0253-0
DOI :
10.1109/MEMEA.2006.1644458
