Difference between LM139 VS LM339 comparator IC chips

[Billy Mayo]

What's the Difference between LM139 VS LM339 comparator IC chips

LM139 uses PNP transistors?
LM339 uses NPN transistors?

Any other differences between the Two?

 

[ronv]

They are the same. The 139 just has slightly tighter specs and a wider temperature range.

https://www.electro-tech-online.com/custompdfs/2013/06/lm139.pdf

 

[jbeng]

Both types use a mix of PNP and NPN transistors in their construction. According to the Texas Instruments data sheet (found here), the LM139/139A is characterized for use over the full military temperature range of -55C to +125C, while the LM339/339A is characterized for use between 0C and +70C.

(beat me by just a couple minutes, ronv)

 

[ronv]

Great minds and all that.

 

[Billy Mayo]

So the LM139 is used when its higher current so the ic chip handles the hot temperature?

 

[ChrisP58]

So the LM139 is used when its higher current so the ic chip handles the hot temperature?

No. It is when the product it is used in needs to operate over a wider temperature range.

 

[ronv]

Nope.

Some of the specifications are sensitive to temperature so all it does is guarantee the specifications over a broader range of temperature.

Check out the data sheet.

There in pairs....

 

[dr pepper]

Allthough self heating through dissipation does come into it, the temp rating is more for the ambient temp.
A military device may be expected to work in artic extreme cold and in a hot desert so needs a wider temp range, automotive use also demands a wide range, your tv however probably wouldnt be used at -55 degrees.