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Direct Coupled Bioamplifier
Product #: V75-03
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The V75-03 is directly coupled to the input signal without a preamplifier-coupling filter. It is used for very low frequency signals. A 60 (or 50) Hz notch filter is built in. Biopotentials from electrodes may be of very large potential with only a small variation "riding on top" of the overall signal. AC coupled amplifiers like the other 4 bioamplifiers in our line, de-couple any overall, large DC potential and pass only the variation (above the frequency selected on the preamplifier coupling control). This amplifier is used when the entire signal (absolute level) or very slow variations are of interest. It is used for signals like ENG and EOG.
The isolated version of this amplifier is V75-06.
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