very happy to have you onboard here..!
:thumb:
Jakob E.
:thumb:
Jakob E.
Philips seems to have quitted on 5532 & 5534..
- Thread starter bcarso
- Start date
Help Support GroupDIY Audio Forum:
aww... your the sweetest... you can come home and meet my sister. :shock:
[quote author="Rochey"]
Believe it or not, I still talk to a LOT of people about the old NE5532's... I get the feeling that I will continue with it for quite a while.
Also -- TI's now 2nd sourcing the MC3307x family of audio opamps.
[/quote]
any chance of second sourcing the CA3280 or the CA3080? These have recently dies and are important for analog synths.
Mark
Believe it or not, I still talk to a LOT of people about the old NE5532's... I get the feeling that I will continue with it for quite a while.
Also -- TI's now 2nd sourcing the MC3307x family of audio opamps.
[/quote]
any chance of second sourcing the CA3280 or the CA3080? These have recently dies and are important for analog synths.
Mark
NewYorkDave
Well-known member
The 3080 OTA is out of production? Wow! That's one of those "jellybean" chips that you figure will be available forever...
bcarso
Well-known member
I know there is still significant demand for the stereo part that is similar though not identical to two 3080's, the LM13600/LM13700/NE5517. Philips stopped making the 5517 after the Caen fire but it's now back in production by On Semi. I am fairly certain Philips have no interest in starting up another old process fab, but possibly On Semi might be if the demand could be demonstrated.
Probably any circuit requiring a 3080 could be modified to accept half of a 13700/5517, but it would be a major pain.
I'd welcome a chip with more pins that would allow external R's to reduce the noise of the current mirrors, also using better Q's with larger geometries, but I won't be holding my breath waiting. There's always the THAT arrays for the ambitious.
Probably any circuit requiring a 3080 could be modified to accept half of a 13700/5517, but it would be a major pain.
I'd welcome a chip with more pins that would allow external R's to reduce the noise of the current mirrors, also using better Q's with larger geometries, but I won't be holding my breath waiting. There's always the THAT arrays for the ambitious.
bcarso
Well-known member
[quote author="NewYorkDave"]The 3080 OTA is out of production? Wow! That's one of those "jellybean" chips that you figure will be available forever...[/quote]
Ditto the CA3086/3046. ST even made an improved version (although they just reproduced the ancient spec, the transistors were free from popcorn noise and had much higher beta) but alas those were phased out as well.
I used those arrays for a bunch of things---servoed temp stabilized pairs, voltage references, amps, etc.
Ditto the CA3086/3046. ST even made an improved version (although they just reproduced the ancient spec, the transistors were free from popcorn noise and had much higher beta) but alas those were phased out as well.
I used those arrays for a bunch of things---servoed temp stabilized pairs, voltage references, amps, etc.
sorry folks -- can't help with that one. 
clintrubber
Well-known member
W.r.t. OTA's, here's a nice one (not sure it was already mentioned here):
http://www.edn.com/archives/1995/011995/02di1.htm
Low-cost audio VCA has high performance
http://www.edn.com/archives/1995/011995/02di1.htm
Low-cost audio VCA has high performance
clintrubber
Well-known member
from Viitalahde:
(& thanks again Juergen, it's a good parts-selection - I'll be ordering stuff there)
If you're still looking, I saw that http://www.musikding.de lists them in their catalog. No idea if they still have...
(& thanks again Juergen, it's a good parts-selection - I'll be ordering stuff there)
JH,
Unconfirmed rumours says that philips sounds better..
Jakob E.
Unconfirmed rumours says that philips sounds better..
Jakob E.
