Title :
A low-power 2.4-GHz receiver for wireless implantable neural stimulators
Author :
Mirbozorgi, S.A. ; Bahrami, Hamid Reza ; Rusch, Leslie A. ; Gosselin, B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. Laval, Quebec City, QC, Canada
Abstract :
This paper presents a 2.4 GHz low-power CMOS On-Off Keying receiver front-end which contains a low noise amplifier with a novel down conversion mixer that is designed for wireless forward telemetry link in neural stimulation applications. The transceiver operates between 2.4 and 2.5 GHz to support the full industrial, scientific and medical band. The post-layout simulation results show that the fully integrated low-noise amplifier exhibits a gain of 15 dB, a noise figure of 1 dB at 2.4 GHz, and the input matching (S11) is -16 dB. The proposed mixer is resistor-less and designed based on current starved delay elements in a Gilbert topology. The transceiver implemented in a TSMC 0.18 μm CMOS technology uses a supply voltage of 1.2 V, supports a data rate of up to 100 Mbps, and consumes 7 mW. The total size of the proposed receiver front-end equals 0.38 mm2.
Keywords :
CMOS integrated circuits; biomedical telemetry; low noise amplifiers; low-power electronics; prosthetics; telemedicine; Gilbert topology; TSMC CMOS technology; current starved delay elements; frequency 2.4 GHz to 2.5 GHz; fully integrated low-noise amplifier; gain 1 dB; gain 15 dB; loss -16 dB; low-power CMOS on-off keying receiver front-end; size 0.18 mum; voltage 1.2 V; wireless forward telemetry link; wireless implantable neural stimulators; CMOS integrated circuits; Inverters; Mixers; Radio frequency; Receivers; Topology; Wireless communication; 2.4 GHz receiver; Bio-Implant devices; LNA; OOK modulation; mixer;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865327
