[SI-LIST] Re: Op-Amp
- From: "o. laney" <olaney@xxxxxxxx>
- To: codymiller@xxxxxxxxxx
- Date: Wed, 3 Mar 2010 22:03:57 -0800
Sometimes there is charm in a simple emitter follower, notwithstanding
that biasing a simple transistor to compensate for the diode drop seems
to be vanishing knowledge. You would want an Ft around 1.5 GHz or a bit
higher and layout to match, but not lots higher unless you are into
impromptu oscillator design. Stability will depend on proper
termination. Are you sure you wouldn't prefer a gain of 2 with a
backmatch resistor in series?
Orin Laney
On Wed, 3 Mar 2010 08:51:31 -0700 <codymiller@xxxxxxxxxx> writes:
> All,
>
> I am looking for a unity gain amplifier solution that has a
> bandwidth of
> 500 MHz or higher if possible. I need to be able to drive a 50 ohm
> load.
> The voltage range needed is around +-5V maybe smaller if necessary.
>
> Any component/circuit suggestions would be appreciated.
>
> Thanks,
> Cody
>
>
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