Reductionl of Interference Due to Common Mode Voltage in Biopotential Amplifiers
Winter, Bruce B.
Webster, John G.
IBM Corporation;
This paper appears in: Biomedical Engineering, IEEE Transactions on
Publication Date: Jan. 1983
Volume: BME-30,
Issue: 1
On page(s): 58-62
ISSN: 0018-9294
Digital Object Identifier: 10.1109/TBME.1983.325167
Current Version Published: 2007-03-12
Abstract
We review how the nonideal properties of biopotential amplifiers can transform common mode voltage into interference. We then review several design approaches for two-and three-electrode amplifiers, both nonisolated and isolated, that reduce this interference. We consider the effects of static electricity on the various designs, and we show how to calculate the optimal values of the circuit components.
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