DocumentCode
439190
Title
A 0.5mW passive telemetry IC for biomedical applications
Author
Huang, Qiuting ; Oberle, Michael
Author_Institution
Swiss Federal Institute of Technology, Zurich, Switzerland
fYear
1997
fDate
16-18 Sept. 1997
Firstpage
172
Lastpage
175
Abstract
The radiated power received by a small coil in implantable telemetry systems is less than a milliwatt. This requires a very efficient RF to DC converter, as well as the lowest possible power consumption for the biomedical sensor and data acquisition/transmisson system. This paper describes the design of a BiCMOS integrated circuit that includes a low noise amplifier, a lowpass notch filter, an A/D converter, voltage doubler/rectifier as well as a low power voltage regulator. The entire system, including the 1.7kΩ MR bridge sensor, consumes only 520µW average power @3V.
Keywords
Application specific integrated circuits; BiCMOS integrated circuits; Biosensors; Coils; DC-DC power converters; Data acquisition; Energy consumption; Integrated circuit noise; Radio frequency; Telemetry;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1997. ESSCIRC '97. Proceedings of the 23rd European
Conference_Location
Southampton, UK
Type
conf
Filename
1470891
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