Unique request: 10MHZ (-3db) pre-amp - diyAudio
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Old 24th March 2003, 09:19 PM   #1
diyAudio Member
Join Date: May 2001
Default 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.

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Old 24th March 2003, 09:39 PM   #2
A 8 is offline A 8  Sweden
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Join Date: Mar 2003
Location: Gothenburg
Is it for video? Either way there are a lot of op amps availible.
What does is need to be good at?
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Old 24th March 2003, 09:41 PM   #3
rljones is offline rljones  United States
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Join Date: Mar 2001
Location: california
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: http://sound.westhost.com/highspeed.htm

Regards, Robert
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Old 24th March 2003, 09:55 PM   #4
BrianL is offline BrianL  United States
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Join Date: Mar 2002
Location: USA
Try something like a Burr-Brown (aka TI)
OPA686 or OPA687
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