A Photovoltaic-Driven and Energy-Autonomous CMOS Implantable Sensor

被引：67

作者：

Ayazian, Sahar ^{[1
]}

Akhavan, Vahid A. ^{[2
]}

Soenen, Eric ^{[3
]}

Hassibi, Arjang ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

[2] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA

[3] Taiwan Semicond Mfg Co, Austin, TX 78759 USA

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2012年 / 6卷 / 04期

关键词：

CMOS; energy harvesting; implantable device; neuromorphic; photovoltaic cell; subthreshold; NEURAL RECORDING-SYSTEM; MULTICHANNEL; OPTIMIZATION;

D O I：

10.1109/TBCAS.2011.2179030

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

An energy-autonomous, photovoltaic (PV)-driven and MRI-compatible CMOS implantable sensor is presented. On-chip P+/N-well diode arrays are used as CMOS-compatible PV cells to harvest mu W's of power from the light that penetrates into the tissue. In this 2.5 mm x 2.5 mm sub-mu W integrated system, the in-vivo physiological signals are first measured by using a subthreshold ring oscillator-based sensor, the acquired data is then modulated into a frequency-shift keying (FSK) signal, and finally transmitted neuromorphically to the skin surface by using a pair of polarized electrodes.

引用

页码：336 / 343

页数：8

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