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| ActiveTwo AD-box | |||||||||||||||||||||||||||||
| The ActiveTwo AD-box forms an ultra compact, low power galvanically isolated front-end (close to the subject) in which up to 256 sensor-signals are digitized with 24 bit resolution. These sensors can be Active electrodes as well as a range of additional active sensors measuring parameters like respiration, temperature, force etc. Each AD-box channel consists of a low noise DC coupled post-amplifier, with a first order anti-aliasing filter, followed by a Delta-Sigma modulator with an oversampling rate of 64, and decimation filter with a steep fifth order cascaded integrator-comb (CIC) filter response and high resolution 24-bit output. The digital outputs of all the AD converters (up to 256) are digitally multiplexed and sent to the PC via a single optical fiber without any compression or other form of data reduction. | |||||||||||||||||||||||||||||
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