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Journal article (2018)

Authors

M. Zamani University of Tehran
Y. Rezaeiyan University of Tehran
Omid Shoaei University of Tehran
W.A. Serdijn Bio-Electronics - EEMCS
Research Group
Bio-Electronics (EEMCS) (TU Delft)
Low power CMOS Biosensor Instrumentation amplifier Bio-impedance Analog circuit design Impedance measurement Cardiac tissue Programmable amplifier
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Published Date

2018

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Bio-Electronics

Abstract

This paper presents an implantable bio-impedance measurement system for cardiac pacemakers. The fully integrated system features a lowpower analog front-end and pulse widthmodulated output. The bio-impedance readout benefits from voltage to time conversion to achieve a very low power consumption for wirelessly transmitting the data outside the body. The proposed IC is fabricated in a 0.18μmCMOSprocess and is capable ofmeasuring the bio-impedance at 2 kHz over a wide dynamic range from 100λ to 3.3 kλ with 1.35 λrms accuracy and 1 μA maximum current injection while consuming just 1.55 μA from a 1 V supply.

Files

08248760.pdf
(.pdf | 3.41 Mb)