Author Topic: Dreams involving electronics.  (Read 583 times)

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Offline BrianHG

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Dreams involving electronics.
« on: March 09, 2018, 02:25:19 pm »
Well, I'm sure something like this has happened to a lot of us engineers.
This morning, I has a dream where I was looking to identify a really early, like one of the first, precision voltage reference silicon device for an ADC.  I could not figure out who made the thing.

Ok, what's a good first time manufacturer of a precision integrated voltage reference above the basic level of a zener diode?

Maybe my dream will be answered here...
__________
BrianHG.
 

Offline David Hess

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Re: Dreams involving electronics.
« Reply #1 on: March 10, 2018, 01:46:11 am »
National Semiconductor did but I do not think Fairchild or Signetics made any integrated voltage references.  The highest precision parts were and still are based on integrated zener diodes and National made made those as well.  The companies which specialized in precision like PMI (Precision Monolithic Incorporated) and Burr-Brown made integrated references as well.  Analog Devices bought PMI and TI bought Burr-Brown.

I think early Intersil had to have had something but I don't remember any integrated references from GE or RCA.

If you have the time, searching old databooks would be definitive.
 
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Offline schmitt trigger

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Re: Dreams involving electronics.
« Reply #2 on: March 10, 2018, 01:53:25 am »
You mean like, bandgap references?

I once read a web article where -if my memory serves me well, were discovered by National Semi.

The semiconductor museum has many, many historical documents related to all these types of inventions. Sadly, it is not really searchable from inside its own page, but with the help of good old Google, you may find what you want.

http://semiconductormuseum.com/Museum_Index.htm
 
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Offline Cyberdragon

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Re: Dreams involving electronics.
« Reply #3 on: March 10, 2018, 03:39:19 am »
You mean the LM109?

Here's a Fairchild one (age unknown):

*BZZZZZZAAAAAP*
Voltamort strikes again!
Explodingus - someone who frequently causes accidental explosions
 
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Online T3sl4co1l

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Re: Dreams involving electronics.
« Reply #4 on: March 10, 2018, 05:53:27 am »
I had a dream this morning, something about turning up a CK5702 for more and more power; the filament popped and that was it.  Very vague, not sure what it was doing, maybe an oscillator or something.  Visual was sort of a roughly conical lighthouse with it on top.

Happens from time to time.  Also video games.  Coworkers.  Random neural noise; enjoy the absurdity I say. :)

Tim
Seven Transistor Labs, LLC
Electronic Design, from Concept to Layout.
Need engineering assistance? Drop me a message!
 
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Offline BrianHG

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Re: Dreams involving electronics.
« Reply #5 on: March 10, 2018, 06:12:37 am »
specialized in precision like PMI (Precision Monolithic Incorporated) and

OMG, I used to buy PMI back in the 70s I believe.  I totally forgot about them.  Thanks....
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Offline BrianHG

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Re: Dreams involving electronics.
« Reply #6 on: March 10, 2018, 06:17:59 am »
I had a dream this morning, something about turning up a CK5702 for more and more power; the filament popped and that was it.  Very vague, not sure what it was doing, maybe an oscillator or something.  Visual was sort of a roughly conical lighthouse with it on top.

Happens from time to time.  Also video games.  Coworkers.  Random neural noise; enjoy the absurdity I say. :)

Tim

I know vacuum tube voltage references kick ass over zeners, as demonstrated here by Mr. Carlson:

https://youtu.be/xXG3VmUBF_o?t=1612
__________
BrianHG.
 

Offline David Hess

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Re: Dreams involving electronics.
« Reply #7 on: March 10, 2018, 10:29:19 pm »
You mean the LM109?

Here's a Fairchild one (age unknown):


The 109/309 is a 5 volt regulator which itself does not even use a bandgap reference.  The date code on your example is October of 1981.

Bob Pease says the first one was Widlar's LM113.
 

Offline Cyberdragon

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Re: Dreams involving electronics.
« Reply #8 on: March 11, 2018, 07:58:55 am »
*BZZZZZZAAAAAP*
Voltamort strikes again!
Explodingus - someone who frequently causes accidental explosions
 


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