A Sub-100 µW 0.1-to-27 Mb/s Pulse-based Digital Transmitter for the Human Intranet in 28 nm FD-SOI CMOS - Institut d'électronique, de microélectronique et de nanotechnologie Accéder directement au contenu
Article Dans Une Revue IEEE Journal of Solid-State Circuits Année : 2022

A Sub-100 µW 0.1-to-27 Mb/s Pulse-based Digital Transmitter for the Human Intranet in 28 nm FD-SOI CMOS

Résumé

Human body communications require energyefficient transceivers to connect diverse devices on the human body for wellness and medical applications. This paper presents a fully digital pulse-based transmitter (TX) for capacitive bodycoupled communications (c-BCC) in 28 nm FD-SOI CMOS. The transmitter is operating at 450 MHz where surface wave (SW) propagation is the dominant mechanism of capacitive body coupled communication (c-BCC), offering a larger bandwidth with a more stable channel. The heavily duty-cycled transmitter uses a 90 MHz free-running oscillator and edge combiners to generate OOK Gaussian-shaped pulses through a switchedcapacitor PA. Wide range forward body-biasing (FBB), specific to FD-SOI technology, allows frequency tuning and adaptive efficiency optimization as a function of data rate. The proposed transmitter consumes 17 to 76 µW for flexible data rates from 0.1 to 27 Mb/s (170 pJ/b down to 2.8 pJ/b) with up to 14 % system efficiency under 0.5 V supply voltage.
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Dates et versions

hal-03514856 , version 1 (06-01-2022)

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Guillaume Tochou, Robin Benarrouch, David Gaidioz, Andreia Cathelin, Antoine Frappé, et al.. A Sub-100 µW 0.1-to-27 Mb/s Pulse-based Digital Transmitter for the Human Intranet in 28 nm FD-SOI CMOS. IEEE Journal of Solid-State Circuits, 2022, 57, pp 1409-1420. ⟨10.1109/JSSC.2022.3140905⟩. ⟨hal-03514856⟩
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