A 0.5 ^ Four-Channel 1.1 mW Wireless Biosignal Interface With 20 m Range

• Published in: IEEE transactions on biomedical circuits and systems Vol. 8; no. 1; pp. 138 - 147
• Main Authors: Morrison, Tim, Nagaraju, Manohar, Winslow, Brent, Bernard, Amy, Otis, Brian P.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.02.2014; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Brain computer interface; ECG/EKG; electrophysiology; EMG; low power; neuroscience; wireless
• ISSN: 1932-4545; 1940-9990
• DOI: 10.1109/TBCAS.2013.2260337

This paper presents a self-contained, single-chip biosignal monitoring system with wireless programmability and telemetry interface suitable for mainstream healthcare applications. The system consists of low-noise front end amplifiers, ADC, MICS/ISM transmitter and infrared programming capability to configure the state of the chip. An on-chip packetizer ensures easy pairing with standard off-the-shelf receivers. The chip is realized in the IBM 130 nm CMOS process with an area of 2×2 mm 2 . The entire system consumes 1.07 mW from a 1.2 V supply. It weighs 0.6 g including a zinc-air battery. The system has been extensively tested in in vivo biological experiments and requires minimal human interaction or calibration.