title: The isolation mode rejection ratio in bioelectric amplifiers.
abstract: Galvanic isolation of a patient during a bioelectric recording is necessary to ensure the safety of the patient. In a typical measurement situation high interference voltages may be present across the isolation barrier. In this paper the necessity of a very high isolation mode rejection ratio--the ability of the amplifier to suppress feed-through from voltages across the isolation barrier to the output--is argued and a design of a multichannel amplifier with an isolation mode rejection ratio of 160 dB is described.
authors.affiliation: Laboratory of Medical Physics, University of Amsterdam, The Netherlands.
authors.forename: A C
authors.initials: AC
authors.lastname: Metting van Rijn
authors.forename: A
authors.initials: A
authors.lastname: Peper
authors.forename: C A
authors.initials: CA
authors.lastname: Grimbergen
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D004568:Electrodiagnosis / Q000295:instrumentation* / Q000379:methods; D006801:Humans