An OOK Body-Channel Transceiver Front-End ASIC for Distributed Force Measurement

Abstract

The design and implementation of a fully integrated transceiver front-end for biomedical data is reported. The system targets the transmission of force data from a distributed sensor system for on-body application. A prototype force transducer patch is presented whose parasitic capacitance is exploited as coupling capacitance for body-channel transmission. The transceiver is implemented in 0.35 μm CMOS technology and occupies an area of 0.0178 mm 2 . It consumes 360 μA of current at a supply voltage of 3 V. Measured results further confirm a transmission rate of 54 kb/s making the design suitable for use in a distributed pressure sensing network.

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“…Another work was based on an experimental study and discussed the characterization of the human body as a signal transmission medium [18], [19], [20]. A third group of studies dealt with the design and implementation of the transceiver for BCC [21], [22], [23].…”

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“…Commercial discrete devices may consume as little as 12 pJ per level at the targeted resolution of 10 bit. The energy consumption of the transmitter depends on various parameters including the transmission distance and transmission medium [21]. A range between 20 nJ per effectively transmitted bit as a low but realistic value [22,23] and a more conventional 5 lJ/S [24] is selected for this comparison.…”