A low power MICS band transceiver architecture for implantable devices

2005 ◽  
Author(s):  
A. Tekin ◽  
M.R. Yuce ◽  
Wentai Liu
Keyword(s):  
Low Power ◽  
Implantable Devices ◽  
Mics Band

A Novel Delay-Based GFSK Demodulator in 65 nm CMOS for Low Power Biomedical Applications

2018 ◽  
Vol 10 (3) ◽  
pp. 21-32
Author(s):  
Meng Fu ◽  
Stan Skafidas ◽  
Iven Mareels
Keyword(s):  
Low Power ◽  
Biomedical Applications ◽  
Signal To Noise Ratio ◽  
Electronic Devices ◽  
Silicon Area ◽  
Novel Structure ◽  
Channel Bandwidth ◽  
Shift Keying ◽  
Mics Band ◽  
Demodulation Method

This article describes how, in recent years, with the development of microelectronics, implantable electronic devices have been playing a significant role in modem medicine. Examples of such electronic implant devices are, for instance, retinal prosthesis and brain implants. It brings great challenges in low power radio frequency (RF) and analog designs. This article presents a low power Gaussian frequency shift keying (GFSK) demodulator designed for Medical Implant Communications Service (MICS) band Receiver. This demodulator utilizes a novel structure that a wide IF range can be handled and presents the smallest Δf/f ratio in any published GFSK demodulators. In theory the demodulation method can be applied to any RF frequency. The demodulator draws 550uA from a 1 V power supply. A maximum data rate of 400 Kbits/s can be achieved within the 300 KHz channel bandwidth defined by MICS. A simulated signal-to-noise ratio (SNR) of 15.2dB at AWGN channel is obtained to achieve 10-3 bit error rate (BER). This demodulator is fabricated on 65-nm CMOS and occupies 0.12mm2 silicon area.

scholarly journals Ultra Low-Power Algorithm Design for Implantable Devices: Application to Epilepsy Prostheses

2011 ◽  
Vol 1 (1) ◽  
pp. 175-203 ◽  
Author(s):  
Shriram Raghunathan ◽  
Sumeet K. Gupta ◽  
Himanshu S. Markandeya ◽  
Pedro P. Irazoqui ◽  
Kaushik Roy
Keyword(s):  
Low Power ◽  
Algorithm Design ◽  
Implantable Devices ◽  
Ultra Low Power

A 260-μW Down-Conversion Demodulator for MICS-Band Receiver

2016 ◽  
Vol 26 (02) ◽  
pp. 1750027 ◽  
Author(s):  
Chia-Hung Chang ◽  
Cihun-Siyong Alex Gong ◽  
Jian-Chiun Liou ◽  
Yu-Lin Tsou ◽  
Feng-Lin Shiu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Cmos Process ◽  
Communication Services ◽  
Ultra Low Power ◽  
Resistive Feedback ◽  
Mics Band ◽  
Down Conversion ◽  
Implant Communication

This paper showcases a low-power demodulator for medical implant communication services (MICS) applications. Complementary shunt resistive feedback, current reuse configuration, and sub-threshold LO driving techniques are proposed to achieve ultra-low power consumption. The chip has been implemented in standard CMOS process and consumes only 260-[Formula: see text]W.

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