System configurations with A/D conversion for multichannel bioelectric recordings

Multichannel instrumentation for the recording of bioelectric events with a high quality should have an isolated section of small dimensions with signal transfer by a low capacitance transmission technique like an optical fiber link. A/D conversion in the isolated section simplifies signal transmission. In such designs it is beneficial to use one A/D converter per channel. The disadvantages of increased power consumption and cost can be expected to become less significant