From: sleeper75se (sleeper75se_at_yahoo.se)
Date: 2001-12-19 02:55:48
Hi Joerg,
sorry to hear that it didn't work. Does this mean we don't have a
working input stage at the moment?
A couple of questions:
How is the input stage realized? A double sided board with ground
planes and guards is much closer to how it should look than a
breadboarded setup.
The schematic says the protection diodes are 1N4148. What happens if
you cover them with a piece of electricians tape?
(They're light sensitive)
Is the noise reduced/changed if you cool the input circuit (not the
INA114) with cold-spray or something similar? I realize this is a
shot in the dark...
Regards,
Andreas
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:35 BST