A 7 x 7 x 2 mm³ 8.6-μW 500-kb/s Transmitter With Robust Injection-Locking-Based Frequency-to-Amplitude Conversion Receiver Targeting for Implantable Applications

This is the authors' abstract. We don't add key points for this paper.

A transmitter (TX)/receiver (RX) pair using galvanic coupling to achieve in-body to on-body body channel communication (I2O-BCC) for ultra-low power (ULP) miniaturized implanted applications is presented. The I2O-BCC enables low loss communication (3. It contains a micro-battery, two micro-probes, and the designed SoC in 130-nm CMOS process. The in-body TX radio block consumes only 8.6 μW at 500 kb/s with an on-chip power management unit that exhibits a 45% power efficiency, while the on-body RX consumes 591.5 μW. The TX radio block power is 8× lower than previous works and achieves energy efficiency at 17.2 pJ/b with minimal bill of material (BOM).