[sdiy] OTA performance (was SSM chip reissue)

[Andre Majorel]

On 2017-04-26 10:06 +0200, Roman Sowa wrote:

> At low cut off frequency, when integrator currents are really
> small, Zeners are damping the oscillation, because most of the
> current is eaten up by the zener, not the cap - at that small
> current their voltage is way much smaller than, say, at 1mA,
> the top of VCF frequency.

Any possibility of putting an op amp between the BP output and
the Zener diodes to buffer the signal ?

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