[sdiy] TL07x as output stage?

Neil Johnson neil.johnson71 at gmail.com
Fri Feb 26 06:38:42 CET 2016


Hi,

neil harper wrote:
> When referring to the final opamp stage of a line-level output - I recently
> read: "any popular op-amp known to the author, except for the TL06x, TL07x,
> or TL08x series (their high open loop output impedance
> makes them unstable with capacitive loads such as cables"
>
> I've always been a fan of TL07x's (since I have hundreds of them) and this
> is my usual go-to op-amp for anything, including this final output stage.
> Should I be looking for alternatives?

No, you just need to use the right circuit.  Olivier has already given
you a couple of good links, I'd like to add some further thoughts on
this from a post I made on MW some time ago:

https://www.muffwiggler.com/forum/viewtopic.php?p=1129644#1129644

You can see in the spice plots what result the various methods produce.

Neil
--
http://www.njohnson.co.uk



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