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An on-chip implantable lock-in analyzer of variations of the electrical bio-impedance has been designed, and pilot ASICs have been fabricated and tested. A mixed signal approach as the most suitable way for accomplishing a low-voltage and low-power ASIC for use in implantable devices for various biomedical applications is discussed in this paper.
Instrumentation and Measurement, IEEE Transactions on (Volume:51 , Issue: 4 )
Date of Publication: Aug 2002