Re: Choosing voltage opamp

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#2057

From: Vitaliy
Date: Sat, 23 Sep 2006 23:31

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I've been trying to do that.

In a lot of examples on the datasheets of amplifiers I'm looking for, I
see they are using 50Ohm input. However, I know for sure (test results)
that output of the first stage (photodiode amp) does not work with
50Ohm loads, but works with 1MOhm loads. Should I be concerned about
that?

Vitaliy
>
> All of the usual suspects (National, TI [including Burr-Brown], Linear
> tech, AD and others) make devices specifically designed to drive 50 ohm
> loads.
>
> Check out the websites and use the parametric search function and
> specify 50 ohm load and then choose a suitable device. We don't know
> what type of load that is beyond 50 ohm, so the above is the only
> advice I can give.
> 
> Cheers
> 
> PeteS

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From: "Vitaliy" <vmykhayl@ee.ryerson.ca>
Newsgroups: sci.electronics.design,sci.electronics.basics,aus.electronics
Subject: Re: Choosing voltage opamp
Date: 23 Sep 2006 16:31:33 -0700
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