ca Transconductance Amplifiers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for ca Transconductance. The CA and CAA are similar in generic form to conventional operational amplifiers, but differ sufficiently to justify an explanation of their unique. The CA and CAA types are Gatable-Gain Blocks which utilize the unique operational-transconductance-amplifier. (OTA) concept described in.
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Don’s Blog: Last of the OTA’s
So, we reluctantly must withdraw these CA parts as our stock is depleted and in good faith, notify our customer base in time for last time buys. As for other sources, I would start with our obsolete distributor, Rochester Electronics. I want to suggest that these chips are too important to retire. Don Tillman at July 16, And then after acquiring buying Burr Brown, Texas Instruments has to figure out what to do with all that stuff they got.
If you want, the MCP has a well drawn internal circuit.
What I really want is a replacement for the high end CA Perhaps NTE is ahead of the game, and indeed has a new source for these parts. And there is currently a resurgance in modular analog music synthesizers SynthTech, Synthesizers.
Rochester – CA3080AE IC – Reissued OTA Chip
Yeah, I ca30080 about that Dear Don, I will pass on your concerns but please understand, these CA family of products were developed by RCA on a very old and obsolete fab process that is long since been discontinued and the fab plant was shut down and sold caa3080. Post a comment Thanks for signing in. The bad news is that you have to use individual transistors – you could make a plug in module, but getting an exact module is almost impossible.
And I’m sure the CA hasn’t been their top seller. The CA series parts are certainly old; I think most of them were introduced before the Nixon administration!!! We are now reviving and old product that used theand have found some surplus supplies. Nah; more like a very weird chip that didn’t sell. Usually it’s just a case of some guys who are naturally kind’a jumpy. This was not a big deal. Somebody picking up the ?
Sync, Yeah, I va3080 about that But the output is a current source instead of a voltage source. Out of frusteration, I designed my own fill-in replacement for the ANP.
The guys who the fab was sold to? OTA’s are perfect for a multitude of electronic music applications because they can control a parameter, such as amplifier gain or filter frequency, and control it very accurately over a range of at least three decades. This time I had to use an LM and a resistor current circut to make the inversion for the compressor. Or would Intersil consider introducing an improved 21st century version of the the CA, made in a modern fab?
NTE seems the best hope. I will pass on your concerns but please understand, these CA family of products were developed by RCA on a very old and ca3800 fab process that is long since been discontinued and the fab plant was shut down and sold off.
The stupidity of the IC industry is that they neglect to understand that the VCA is one function that does not work well in digital. Note that you can achieve very respectable dynamic range with this part, and that it will operate on just a few volts and with very little current. But NJR obviously has a fab line capable of this “archaic” linear process. So, the process is gone and is not worth the time and 10’s of millions to ca3008 when today we are working with sub micron processes.
Concerned electronic music folks could make “lifetime buys” and do fine. Not that the OPA isn’t an interesting chip Would this be equivalent or better then AE for audio range? Pond at Ca30080 20, And I have a significant number of additional c3080 in the pipeline. Small and compact means unreliable and unserviceable. We are sorry but what FAB equiptment we did not move to Florida, we sold with the building.
It might actually work for my dozens-of-OTA’s project.
I almost went to using the CA, but had problems with its manufacturer, Harris, who was a “competitor” in the broadcast industry at the time. Let’s raise the bar a little, shall we? Surface mount does not belong on an airplane or in a car! I want to use this one because they have a Pspice model so I can model it all in software, and TI still is selling this currently.
We have problem to buy CAM If you’re making a ‘s based synthesizer, you can use cq3080 different VCA circuits. Eventually, I figured out how to make a cancelation circuit, and my VCA is now in the testing stages.
I think that the ANP was originally designed for television sets, which needed volume to be remote-controlled. I’ll stick to my own circuit, due to the costant discontinuation of fixed ICs. It’s an amplifier; and like an opamp it has a pair of differential inputs and a cz3080 output.
Most of these are somewhat antiquated designs and have few practical uses today.
So here’s my recent email conversation with Intersil support on the matter: