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A Programmable Low ...
A Programmable Low Power Current Source for Bioimpedance Measurement : Towards a Wearable Personalized Health
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- Hamed, Zaid (författare)
- KTH,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK
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- Tenhunen, Hannu (författare)
- KTH,Industriell och Medicinsk Elektronik,University of Turku (UTU), Finland
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- Yang, Geng (författare)
- KTH,Industriell och Medicinsk Elektronik
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(creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: 2015 37th Annual International Conference of The IEEE ENGINEERING in Medicine and Biology Society (EMBC). - 9781424492701 ; , s. 2038-2042
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Bioimpedance is a noninvasive measurement method that facilitates body composition analysis, besides being indicative of many other health parameters. In this work a novel programmable, low complexity, high output impedance, high voltage compliance and wideband current source for bioimpedance applications is presented. Previously, we designed, fabricated and tested in vivo a bio-patch for acquisition of multiple bio-signals [1]. Upon integration with our previous work, this circuit is envisioned to constitute part of a personalized health assistant. Simulation at worst case corners and real operation conditions was carried out using UMC-180 nm 1 poly 6 metal CMOS process. Full duty cycle, shortened or stepped square waves can be generated. Amplitude control of 8 different current levels is supported. Frequency can be tuned up to 1 MHz and an output impedance of 2.8 MO @ 250 KHz is achieved at full current capacity. Total current consumption is comparable to the injected current, making the circuit highly efficient.
Nyckelord
- Bioimpedance
- current source
- wearable
- digital to analog (DAC)
- H-bridge
- personalized health assistant
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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