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Gomer 24th March 2003 10:19 PM

Unique request: 10MHZ (-3db) pre-amp
I am looking for plans or such for a very high resolution pre-amp. I need it to extend to about 10Mhz before rolling off. 5 would be ok, but 10 is better. This is for a non-audio application, but I thought someone here might know something.

Does anyone know if Eric Wallins Pre-amp2 can be easily modified (via op-amp change, or couple of parts change) to accomidate this? I already have one an could do a parts swap if it would work.


A 8 24th March 2003 10:39 PM

Is it for video? Either way there are a lot of op amps availible.
What does is need to be good at?

rljones 24th March 2003 10:41 PM

There are many high speed op-amps that can accomplish what you want, but the layout is crucial. See Elliot's page for some discussion using such an op-amp:

Regards, Robert

BrianL 24th March 2003 10:55 PM

Try something like a Burr-Brown (aka TI)
OPA686 or OPA687

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