A low-power RF integrated circuit for implantable sensors |
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Authors: | Mohammad A Adeeb Hung Nguyen Syed K Islam Mo Zhang |
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Affiliation: | (1) Department of Electrical and Computer Engineering, University of Tennessee, Knoxville, TN 37996, USA |
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Abstract: | A low-power low-voltage analog signal processing circuit has been designed, fabricated, and tested. The circuit is capable
of processing an analog sensor current and producing an ASK modulated digital signal with modulating signal frequency proportional
to the sensor current level. An on-chip regulator has been included to stabilize the supply voltage received from an external
RF power source. The circuit can operate with a power supply as low as 1 V and consumes only about 20 μW of power, which is
therefore very suitable for implantable biomedical applications. The whole chip was laid out and fabricated in a 0.35 μm bulk
CMOS technology. Experimental results show good agreement with the simulation results. |
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Keywords: | Implantable sensor Telemetry Low-power Low-voltage Wireless RF CMOS ASK |
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