[sdiy] Generating +5V gate signals from +3.3V logic

[Andre Majorel]

On 2012-03-04 11:27 +0000, Tom Wiltshire wrote:

> I'm running a 3.3V dsPIC and I want to generate 0-5V gate
> outputs from it. I've got a 3.3V supply for the uP, and a
> +/-12V for the op-amps, but no +5V supply.

No idea but I'll seize the occasion to encourage you to use
whatever it takes to make the output voltage stiff and well-
defined.

Gate outputs make good modulation sources for VCOs etc. It's
nice to be able to dial in a minor third and not have to redo it
after switching to another gate output or multing the gate to
another input. Which the usual 1 k resistor in series with the
op amp output prevents, BTW.

-- 
André Majorel http://www.teaser.fr/~amajorel/