Title :
A multichannel digital biosignal acquisition system using hybrid microelectronics
Author :
Roppel, T. ; John, R. Wayne ; Morse, M.S. ; Walker, J.
Author_Institution :
Auburn Univ., AL, USA
Abstract :
A dedicated system has been designed for multichannel electromyography and other biosignal acquisition applications using the miniaturization capability of hybrid microelectronics technology. In this system, each electrode set site is provided with a hardware module consisting of a high-common mode rejection ratio differential amplifier, low-pass filter, a 12-bit analog-to-digital converter, a parallel-to-serial converter/buffer, and a communication network server. In a multichannel system, the serial digital outputs from each channel are time-division multiplexed onto a single shared wire. The principal advantages of this system for clinical electromyography include proximity of the signal acquisition electronics to the electrode sites and reduced patient constraint, since all channels share a single common wire set.<>
Keywords :
analogue-digital conversion; bioelectric potentials; biomedical electronics; biomedical equipment; data acquisition; integrated circuits; low-pass filters; muscle; analog-to-digital converter; communication network server; differential amplifier; hybrid microelectronics; low-pass filter; multichannel digital biosignal acquisition system; multichannel electromyography; parallel-to-serial converter/buffer; time-division multiplexing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94750
