High channel count (Ch = 40) DRL issues

Hi

I am trying to use OpenEEG analogue amplifier boards from Olimex for high density EMG (40 channel) research, the DRL is to be shared between all the amplifier boards. As per the design documentation (which is excellent, by the way) for multichannel acquisition, IC201 must be removed from the slave boards and the DRL circuit from the master board must be wired to the slave boards via the COM line. Would the IC201 chip be able to handle such a high channel count? Is there anyone else using a similar, high channel (ie more than 20) count?

The DRL circuit chip that I am using on the master board is the standard TLC277IP dual op amp (http://www.alldatasheet.com/datasheet-pdf/pdf/28886/TI/TLC277IP.html) that ships with the boards from Olimex.

Kind regards
Jeremy Pitman

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