Hello

> Is there another manufacturer who is developing and delivering such chips today

Not really.

THere are a lot of NOS SSM2044 in the market (check ebay).

I know also that there is someone in the UK who does a replacement for
SSM2040 or 2044 as a small pcb in smd technology (Sorry I don't find the
URL at the moment). But in fact it is nothing else than four OTAs with
Buffers (FET or TL07x). So you don't have to pay USD 40, if you can do
it with separate chips for USD 5.


Florian