Low Power Amplifiers for Recording Activity of Electrically Active Cells

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dc.contributor.advisorAbshire, Pamelaen_US
dc.contributor.advisorEtienne-Cummings, Ralphen_US
dc.contributor.advisorHoriuchi, Timothyen_US
dc.contributor.advisorSmela, Elisabethen_US
dc.contributor.authorLoganathan, Makeswaranen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.date.accessioned2004-05-31T19:53:51Z
dc.date.available2004-05-31T19:53:51Z
dc.date.issued2003-12-16en_US
dc.description.abstractBiological applications that require sensing individual cells have led to developments in the synthesis of large multielectrode arrays and single cell isolating microstructures. This in turn drives the need for the integration of low power electronic circuitry at or very close to the site of activity. We describe low voltage low power CMOS amplifiers that address this need by rejecting DC offsets, and have tunable bandwidths. They operate at 1.35V, with a power consumption of 37.8μW and have an input referred noise of 23μV. We also describe the design of a wireless transmission system capable of transmitting the electrical signals sensed from cells. Integration of the amplifier array with the wireless link brings continuous monitoring of neurophysiologic activity of unanesthized and freely moving animals closer to realization. The transmitter is capable of generating an ASK modulated signal at a power level of -36 dBm at a frequency of 820 MHz.en_US
dc.format.extent981263 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/131
dc.language.isoen_US
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_US
dc.relation.isAvailableAtUniversity of Maryland (College Park, Md.)en_US
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pqcontrolledEngineering, Biomedicalen_US
dc.titleLow Power Amplifiers for Recording Activity of Electrically Active Cellsen_US
dc.typeThesisen_US

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