If so, we cannot use it downto DC.
I moved your question about the AD8367 to the RF Components community. Someone here should be able to assist you.
The input of the AD8367 is ground referenced, so if the signal that you are applying to the AD8367 is not biased to ground (like 2.5 V, or Vpos/2), you will need an AC coupling capacitor. The AD8367 evaluation board comes setup to be connected to a signal generator that is biased to ground.
What exactly is your application? We might have another part that makes more sense for you.
THX for your attention. I don’t know how to reply on the EngineerZone, I clicked the reply button but nothing happened. So I reply your email directly.
We have a AGC schemastic and AD8367 is used as VGA. What do you recommand to replace it?
Sent: Tuesday, April 09, 2013 1:03 AM
To: Donald Wu
Subject: New message: "Does AD8367 need a DC_block at input?"
Re: Does AD8367 need a DC_block at input?
created by jdobler in RF Components - View the full discussion
What sort of signal are you using? QAM, QPSK, etc? I ask because depending on the BW, you may be able to get away with using AC coupling.
So, if you could tell me center frequency, BW, and type of signal, I could give you pretty good indication if the AD8367 would work for you or not.
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