The oneline diagram above illustrates our basic design philosophy.  The protection circuits limit frequency and amplitude of the inputs.  The amplifier and the right leg driver (not shown) provide the high CMRR.  The anti-alias filters are simple RC filters in combination with A/D onboard filtering.  The A/D is a standard 6 channel, synchronous sampling, serial output A/D.  And the USB is a Cypress FX-2 communicaitons chip.

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