Title :
A near-threshold ASK demodulator for ultra-low-power implantable biomedical microsystems
Author :
Navidi, Mir Mohammad ; Gyung-Su Byun
Author_Institution :
Lane Dept. of Comput. Sci. & Electr. Eng., West Virginia Univ., Morgantown, WV, USA
Abstract :
This paper presents a CMOS 130nm demodulator to support the multi-megabit data rate for wireless biotelemetry communication. A modulation scheme based on amplitude-shift-keying (ASK) is employed to minimize the complexity of the implant circuit and reduce power transmission requirements. The proposed demodulator operates at near-threshold region for ultra-low-power consumption and dissipates only 105μW, with a 0.5V supply (e.g. 726μW at 1.5V) at a data rate of 2 Mb/s and a carrier frequency of 10MHz.
Keywords :
CMOS integrated circuits; amplitude shift keying; biomedical electronics; biomedical telemetry; demodulation; demodulators; prosthetics; radiotelemetry; CMOS demodulator; amplitude-shift-keying; bit rate 2 Mbit/s; frequency 10 MHz; implant circuit; modulation scheme; multimegabit data rate; near-threshold ASK demodulator; power 105 muW; power 726 muW; power transmission; size 130 nm; ultralow-power consumption; ultralow-power dissipation; ultralow-power implantable biomedical microsystem; voltage 0.5 V; voltage 1.5 V; wireless biotelemetry communication; Amplitude shift keying; Biological system modeling; Frequency modulation; Frequency synchronization; Green products; Radio frequency; Telemetry; Amplitude-shift-keying; implantable biomedical systems; near-threshold computation; wireless communication;
Conference_Titel :
Wireless and Microwave Technology Conference (WAMICON), 2013 IEEE 14th Annual
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5536-0
Electronic_ISBN :
978-1-4673-5535-3
DOI :
10.1109/WAMICON.2013.6572753
