A low-power, generic biostimulator with arbitrary pulse shape, based on a central control core

IEICE Electronics Express

Amir M. Sodagar¹  Mousa Karimi¹  Milad Faizollah¹ 

[1] Research Laboratory for Integrated Circuits and Systems (ICAS), ECE Dept., K. N. Toosi University of Technology

关键词: biostimulator;    arbitrary waveforms;    low-power;   

DOI  :  10.1587/elex.10.20120868

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)This paper reports on the design of a low-power biostimulator, capable of generating stimulus pulses with arbitrary wave shapes and programmable amplitude and timing. Designed based on a modular architecture with programmable stimulation details, this system can be used in a wide variety of applications. The system complies with basic requirements for biomedical stimulation systems such as small physical size, serial data communication with external setup, and low-power consumption. It also performs basic functions such as generating bi-phasic pulses, single/train pulses, and residual charge cancellation. Clock gating, operation with external timing, and shared resources are used among the main techniques to significantly reduce the power consumption of the system. To wirelessly interface with the external setup, a BPSK demodulator and clock recovery circuit is used which exhibit 100% data-rate-to-carrier-frequency ratio and consumes as low as 120µW at 2.5Mbps. The system was designed and simulated in a 0.18-µm standard CMOS technology, prototyped for functional verifications, and successfully tested.

【 授权许可】

Unknown