A low-power 13.56 MHz RF front-end circuit for implantable biomedical devices

Shuenn Yuh Lee, Jia Hua Hong, Cheng Han Hsieh, Ming Chun Liang, Jing Yang Kung

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

A low-power fully-integrated CMOS RF front-end circuit for a passive 13.56 MHz biomedical implant is presented. A 13.56 MHz binary phase shift keying (BPSK) signal is received by an internal coil. This front-end circuit is composed of a full-wave bridge rectifier, a linear regulator, a BPSK demodulator, and a clock/data recovery (CDR). A full-wave bridge rectifier converts the carrier waveform with the BPSK signal to an unregulated DC voltage. A linear regulator stabilizes the unregulated DC voltage to 1.8 V that serves as the DC source for the implant. A BPSK demodulator detects the incoming BPSK signal from the internal coil and translates the demodulated data to the CDR which can successfully recover the clock and data for the system controller. This chip with a core area of 0.45 mm2 has been fabricated in a TSMC 0.18 μ m 1P6M CMOS technology. The total power consumed is only 632 μ W.

原文English
文章編號6307898
頁(從 - 到)256-265
頁數10
期刊IEEE transactions on biomedical circuits and systems
7
發行號3
DOIs
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • 生物醫學工程
  • 電氣與電子工程

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