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Subject: Re: Wideband gain measurement
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Mon, 07 Oct 2002 11:18:28 GMT
NNTP-Posting-Date: Mon, 07 Oct 2002 07:18:28 EDT
Organization: Road Runner - NC
Maxium or Analog Devices makes a nice little chip which will do this. It
basically measures the magnitude and phase. The accuracary might be a
"Ban" wrote in message
> > Folks,
> > I have a measurement problem that I have not encountered before. I want
> > measure the gain vs. freq. of an amplifier that works from 1 Hz to 1
> > and I want measurements accurate to 2%. The thing has a nominal gain of
> > and the input impedance is 8 pF in parallel with more than a G-Ohm. How
> > I do it? No problem making rough measurements with a scope but I doubt
> > 2% is possible. Should I get an HP 3400? I have an FFT spectrum
> > that seems to do the job below 25 kHz, but what about above that?
> > Thanks for any suggestions,
> > John
> Rent a Network Analyzer.
> ciao Ban
> electronic hardware designer
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