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Published on: February 29, 2012
A fast, high precision and inexpensive analog to digital board for PC-AT or compatible
1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Abstract:
We describe a simple and inexpensive circuit for analog data acquisition with high speed and high resolution, for use in an IBM PC-AT or compatible. The circuit is suitable for a wide range of applications in electrophysiology. Features of the circuit include multichannel reading, programmable sampling rate, and direct memory access controlled dual buffering for continuous recording. A program written in the C programming language for control of data acquisition is also given.
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