[sdiy] TLC272 trouble

[ChristianH]

On Mon, 14 Nov 2011 22:47:50 +0000 Neil Johnson <neil.johnson97 at ntlworld.com> wrote:

> Richie Burnett wrote:
> > Just remember to make sure that the op-amp is unity-gain stable before
> > doing this. Otherwise, you might find the op-amp oscillating loudly at
> > several MHz, and heating up the silicon.
> 
> True, true.  Fortunately in this case the TLC272 is unity-gain stable, 
> and if you're really chancing it the inputs can go to the GND rail.
> 
> > Unity gain follower is okay for most old slow op-amps. But, some modern
> > high-performance op-amps are compensated for optimum performance at
> > higher signal gains and are borderline stable with full negative feedback.
> 
> Don't worry ... according to "analog guru David G. Dixon" we only need 
> the TL074!

Well, that and the 2164... ;-)

Christian