A monolithic signal processor for a neurophysiological telemetry system
- 1 December 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 20 (6) , 1185-1193
- https://doi.org/10.1109/jssc.1985.1052457
Abstract
A micropower signal-processor IC is the key component of an implantable telemetry system for neurophysiology. The bipolar/JFET/I/SUP 2/L chip uses digital and low-noise analog circuitry to amplify, filter, and multiplex eight channels of neutral, electrogram, and temperature data from unanesthetized and freely moving animals. Fully integrated continuous-time bandpass amplifiers incorporate a frequency-sensitive feedback network to prevent the amplification of input offset voltage. The system can telemeter data for over 500 h, permitting long-term neurophysiological investigations.Keywords
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