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LightProbe: A 64-channel programmable ultrasound transducer head with an integrated front-end and a 26.4 Gb/s optical link

: Hager, P.A.; Risser, C.; Weber, P.-K.; Benini, L.


Abshire, Pamela (General Chair) ; Institute of Electrical and Electronics Engineers -IEEE-; IEEE Circuits and Systems Society:
IEEE International Symposium on Circuits and Systems, ISCAS 2017. Proceedings : Baltimore, Md., USA, 28-31 May 2017
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-4673-6852-0
ISBN: 978-1-4673-6853-7
ISBN: 978-1-5090-1427-9
International Symposium on Circuits and Systems (ISCAS) <50, 2017, Baltimore/Md.>
Fraunhofer IBMT ()

Medical ultrasound processing features two main components: A transducer head to generate the ultrasound wave and acquire the reflected signals and a processing system that will generate the final image. The connection between these two components is established using digital communication over a USB link for smaller mobile systems whereas large stationary systems operating with 4-16x more channels use analog signals over micro-coaxial cables to avoid link rates of 16-100 Gb/s. In this paper, we present LightProbe, a programmable ultrasound transducer head with an integrated 64-channel frontend and operating on an estimated 12 W worst-case power budget. LightProbe is the first transducer head equipped with a 26.4 Gb/s optical link. Moreover, it features a configurable FPGA that can be configured to pre-process the data on the transducer head and allows a flexible, inexpensive, light digital optical link that is immune to interference and can be tailored to fit a variety of devices from small mobile devices all the way to large stationary devices with high throughput requirements.