LM347 comparator/op-amp

E

erictham83

New Member

• Aug 20, 2006

• #1

Can anyone send me LM347 comparator/op-amp datasheet from national semiconductor or provide me more details?
i had search over google but i can find this. It seem like discontinue item.

 

Hero999

Banned

• Aug 20, 2006

• #2

I can't find it, it might be similar to the LM348.

https://www.alldatasheet.net/datasheet-pdf/pdf/TI/LM348.html

 

Roff

Well-Known Member

• Aug 21, 2006

• #3

I don't recall National ever making an LM347. Where did you get this number? Perhaps it is a typographical error.

 

Roff

Well-Known Member

• Aug 22, 2006

• #4

I suspect our OP is looking for **broken link removed**, a quad op amp.

 

hotwaterwizard

Active Member

• Aug 23, 2006

• #5

It is the same.
http://www.ee.latrobe.edu.au/~gt/ele21lin/ELE21LIN-Lab-2.pdf#search='LM347'

**broken link removed**

 

Attachments

• LF147_LF247_LF347.pdf

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• LF147_LF347.pdf

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Roff

Well-Known Member

• Aug 23, 2006

• #6

hotwaterwizard said:

It is the same.
http://www.ee.latrobe.edu.au/~gt/ele21lin/ELE21LIN-Lab-2.pdf#search='LM347'

**broken link removed**

Click to expand...

LM347 is the same as LF347? I don't think so. Can you find a datasheet for LM347?

 

hotwaterwizard

Active Member

• Aug 23, 2006

• #7

Nope Just Proof they are the same.

Search Results:

LM347 = TL074CN

Manufactures
MOTOROLA
SGS THOMS
NS

States in this Datasheet that they are PIN per Pin Compattable
**broken link removed**

FAIRCHILD

**broken link removed**
Circuits using LM347
**broken link removed**
**broken link removed**

 

hotwaterwizard

Active Member

• Aug 24, 2006

• #8

I found this.

 

Attachments

• LM347_LF347.gif

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Roff

Well-Known Member

• Aug 24, 2006

• #9

Good sleuthing, John.
In the National LF147 datasheet you posted, I saw one reference to LM147 for a specific ceramic-packaged part. You found enough other references to convince me that one or more companies produced parts labeled LM347. It's curious that none of them apparently produced a datasheet under that part number.

 

hotwaterwizard

Active Member

• Aug 25, 2006

• #10

LM347 Replacements
TL074CN
CA5470
AD713