A Multi-Parameter Bio-Electric ASIC Sensor with Integrated 2-Wire Data Transmission Protocol for Wearable Healthcare System
2012 (English)In: Proceedings -Design, Automation and Test in Europe, DATE, 2012, 443-448 p.Conference paper (Refereed)
This paper presents a fully integrated application specific integrated circuit (ASIC) sensor for the recording of multiple bio-electric signals. It consists of an analog front-end circuit with tunable bandwidth and programmable gain, a 6-input 8-bit successive approximation register analog to digital converter (SAR ADC), and a reconfigurable digital core. The ASIC is fabricated in a 0.18-μm 1P6M CMOS technology, occupies an area of 1.5 × 3.0 mm 2, and totally consumes a current of 16.7 μA from a 1.2 V supply. Incorporated with the ASIC, an Intelligent Electrode can be dynamically configured for on-site measurement of different bio-signals. A 2-wire data transmission protocol is also integrated on chip. It enables the serial connection over a group of Intelligent Electrodes, thus minimizes the number of connecting cables. A wearable healthcare system is built upon a printed Active Cable and a scalable number of Intelligent Electrodes. The system allows synchronous processing of maximum 14-channel bio-signals. The ASIC performance has been successfully verified in in-vivo bio-electric recording experiments.
Place, publisher, year, edition, pages
2012. 443-448 p.
Bio-electric ASIC, multi-parameter biosensor, Intelligent Electrode, Active Cable, wearable healthcare system
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-75214ScopusID: 2-s2.0-84862067970ISBN: 978-398108018-6OAI: oai:DiVA.org:kth-75214DiVA: diva2:490330
15th Design, Automation and Test in Europe Conference and Exhibition, DATE 2012; Dresden; Germany; 12 March 2012 through 16 March 2012
QC 201305212012-02-052012-02-052013-09-12Bibliographically approved