From: Brian Gr (brian_gr_at_hotmail.com)
Date: 2002-01-03 05:42:09
I don't have the BM schematics here but if memory serves correct, their wasn't any ESD protection on the input stage. The electrode inputs were connected to the instrumentation amplifiers (AD621 I believe) via 10 Meg resistors, so that would significantly limit any current in event of AD621 catastrophic failure and possibly provide some ESD protection.
I'll locate the schematics and let you know. These were the schematics fromseveral years ago.
Brian
----- Original Message -----
From: sleeper75se
To: buildcheapeeg_at_yahoogroups.com
Sent: Wednesday, January 02, 2002 2:47 PM
Subject: [buildcheapeeg] Re: Power/isolation issues...bm solution
Hi Brian,
do you know what the BM have for ESD-protecting the electrode inputs?
Also, is there any kind of user protection if the input amplifiers
get shorted to the power supply?
Be well,
Andreas
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This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:36 BST