An ultra-wideband-inspired system-on-chip for an optical bidirectional transcutaneous biotelemetry

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Title: An ultra-wideband-inspired system-on-chip for an optical bidirectional transcutaneous biotelemetry
Authors: De Marcellis, A
Di Patrizio Stanchieri, G
Palange, E
Faccio, M
Constandinou, TG
Item Type: Conference Paper
Abstract: This paper describes an integrated communication system, implementing a UWB-inspired pulsed coding technique, for an optical transcutaneous biotelemetry. The system consists of both a transmitter and a receiver facilitating a bidirectional link. The transmitter includes a digital data coding circuit and is capable of generating sub-nanosecond current pulses and directly driving an off-chip semiconductor laser diode including all bias and drive circuits. The receiver includes an integrated compact PN-junction photodiode together with signal conditioning, de- tection and digital data decoding circuits to enable a high bit rate, energy efficient communication. The proposed solution has been implemented in a commercially available 0.35 μ m CMOS technology provided by AMS. The circuit core occupies a compact silicon footprint of less than 0.13 mm 2 (only 113 transistors and 1 resistor). Post-layout simulations have validated the overall system operation demonstrating the ability to operate at bit rates up to 500 Mbps with pulse widths of 300 ps with a total power efficiency (transmitter + receiver) lower than 74 pJ/bit. This makes the system ideally suited for demanding applications that require high bit rates at extremely low energy levels. One such application is implantable brain machine interfaces requiring high uplink bitrates to transmit recorded data externally through a transcutaneous communication channel.
Issue Date: 17-Oct-2018
Date of Acceptance: 13-Aug-2018
Publisher: IEEE
Start Page: 1
End Page: 4
Copyright Statement: This paper is embargoed until publication.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/M020975/1
Conference Name: IEEE Biomedical Circuits and Systems (BioCAS) Conference 2018
Publication Status: Accepted
Start Date: 2018-10-17
Finish Date: 2018-10-19
Conference Place: Cleveland, Ohio, USA
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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