Disable filter in scxi

[Juliano]

Is it possible to disable 10khz and 4hz filters in SCXI modules (like 1121, for instance)?

I wish to amplify a 100khz-signal throgh SCXI without filtering it.

[Chaos]

The filters on the SCXI-1121 (without specific model numbers of the others I cant comment on those) can only be disabled through direct hardware modification of the module by the removal of certain capacitors.  I would not recommend this as any such modification would void the warranty.  Perhaps you should consider using a different analog input module.

[Logan_K]

Also, the SCXI-1140 is the only SCXI module which has a bandwidth that is greater than 100kHz - and you can achieve a gain of up to 500.

-Logan K

[Michael.Phillips]

Logan,

The previous posters are correct. The filters on the SCXI-1121 can only be disabled through direct hardware modification of the module. This will increase the bandwidth to somewhere between 40kHz and 50kHz. This new bandwidth limitation is inherent in the isolation amplifier itself.

As a previous poster said, you would probably be better off using a different Analog Input module.

Michael P

National Instruments

Message Edited by Support on 09-21-2005 09:15 AM