An ultra-compact green bio-regulator dedicated for brain cortical implant using a dynamic PSR enhancement technique

This article presents an ultra-compact green Bio-regulator dedicated for brain cortical implant using a dynamic PSR enhancement technique. This novel technique enabled the regulator to achieve a very high power supply rejection (PSR) of -58dB and -78dB at 1 MHz and 10MHz respectively. The Bioregulat...

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Bibliographic Details
Main Authors: Chiang-Liang Kok, Siek, L., Fei Gao, Yuanjin Zheng, Wei Meng Lim
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
Implants
Power supplies
Regulators
System-on-a-chip
Voltage control
Wireless communication
Online Access:Request full text
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Summary:This article presents an ultra-compact green Bio-regulator dedicated for brain cortical implant using a dynamic PSR enhancement technique. This novel technique enabled the regulator to achieve a very high power supply rejection (PSR) of -58dB and -78dB at 1 MHz and 10MHz respectively. The Bioregulator achieves a very low quiescent current of 2μA coupled with an ultra-low power consumption of 1.8μW. This Bioregulator, simulated with Global Foundries 0.18μm CMOS process, yields a stable output voltage of 0.5V with a supply voltage ranging from 0.9-1.2V. Its distinct features, ultra-low power consumption and high PSRR at 1MHz and 10MHz, make it ideally suitable for biomedical brain cortical implant.
ISSN:1094-687X
1558-4615
2694-0604
DOI:10.1109/EMBC.2012.6346262