@article{49aafc3137694ec0a6ea9f5e77333be6,
title = "A programmable implantable microstimulator soc with wireless telemetry: Application in closed-loop endocardial stimulation for cardiac pacemaker",
abstract = "A low-power, wireless, and implantable microstimulator system on chip with smart powering management, immediate neural signal acquisition, and wireless rechargeable system is proposed. A system controller with parity checking handles the adjustable stimulus parameters for the stimulated objective. In the current paper, the rat's intra-cardiac electrogram is employed as the stimulated model in the animal study, and it is sensed by a low-voltage and low-power monitoring analog front end. The power management unit, which includes a rectifier, battery charging and detection, and a regulator, is used for the power control of the internal circuits. The stimulation data and required clock are extracted by a phase-locked-loop-based phase shift keying demodulator from an inductive AC signal. The full chip, which consumes 48 $\mu {\rm W}$ only, is fabricated in a TSMC 0.35 $ \mu {\rm m}$ 2P4M standard CMOS process to perform the monitoring and pacing functions with inductively powered communication in the in vivo study.",
keywords = "Endocardial stimulation, Pacemaker, Power management, Programmable implantable stimulator, Wireless telemetry",
author = "Lee, {Shuenn Yuh} and Su, {Mario Yucheng} and Liang, {Ming Chun} and Chen, {You Yin} and Hsieh, {Cheng Han} and Yang, {Chung Min} and Lai, {Hsin Yi} and Lin, {Jou Wei} and Qiang Fang",
note = "Funding Information: Manuscript received May 19, 2011; revised September 02, 2011; accepted November 16, 2011. Date of publication December 12, 2011; date of current version December 29, 2011. This work was supported by the Chip Implementation Center (CIC), the National Science Council, Taiwan, under Grant 100-EC-17-A-01-S1-040, NSC100–2220–E–194–002, NSC100–2220–E–194–003, NSC100-2628-E-194-003, and the Australian Research Council, Australia. This paper was recommended by Associate Editor D. Ham.",
year = "2011",
month = dec,
doi = "10.1109/TBCAS.2011.2177661",
language = "English",
volume = "5",
pages = "511--522",
journal = "IEEE Transactions on Biomedical Circuits and Systems",
issn = "1932-4545",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",
}