3.8 Proceedings Paper

A 143nW Glucose-Monitoring Smart Contact Lens IC with a Dual-Mode Transmitter for Wireless-Powered Backscattering and RF-Radiated Transmission Using a Single Loop Antenna

Journal

2019 SYMPOSIUM ON VLSI CIRCUITS
Volume -, Issue -, Pages C294-C295

Publisher

IEEE
DOI: 10.23919/vlsic.2019.8777984

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Funding

  1. WC300 Program of Small and Medium Business Administration [S2482887]

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This paper presents a smart contact lens (SCL) controller IC with a high-precision current sensor interface and a dual-mode wireless telemetry, where a single power-oscillator-based circuit with an external loop antenna supports both LSK and RF data transmission. The implemented IC in 0.18 mu m CMOS, achieving a dynamic conversion range of 89 dB while dissipating 143 nW, is verified in a glucose-sensing SCL system.

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