Journal
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume 52, Issue 5, Pages 1221-1229Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSSC.2016.2645601
Keywords
Biomedical telemetry; energy harvesting; microelectronic implants; neural prosthesis; radio transceivers
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We present a radio system that could be used in millimeter-scale wireless neural implants. The system is RF-powered and demonstrates Mbps data rates required for neuromodulation and recording applications. The radio transmits at 58 Mb/s and receives at 2.5 Mb/s maximum data rates. The transceiver uses a duplexer to achieve full-duplex communication via frequency-division duplexing at 1.74 and 1.86 GHz for TX and RX, respectively. The average power consumption of the transmitter is 93 mu W at 58 Mb/s, while that of the receiver is 7.2 mu W at 2.5 Mb/s. The transceiver was fabricated using 40-nm LP CMOS process and occupies 0.8 mm(2) of die area. Including the off-chip duplexer, the system occupies 2 x 1.6 x 0.6 mm(3).
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