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From: "Bill Sloman"
Subject: Re: auotmatic gain control circuit
Date: Sun, 12 Jan 2003 00:30:08 +0100
Organization: Planet Internet
NNTP-Posting-Date: 11 Jan 2003 23:30:09 GMT
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"blackmonkey2046" wrote in message
> Hi all,
> I am trying to build an automatic gain amplifier for bandwidth of 160
> MHZ with ripple less than 0.1 dB. I tried to use a JFET as a variable
> resistor, but the dynamic range is not large enough (require at least
> 10 dB) and I am getting signal distortion.
> Does anyone have experience in building this kind of circuit?
I don't - too fast - but Analog Devices seems to
Have a look at their variable gain amplifiers - the AD836 might be
Bill Sloman, Nijmegen
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