LM336 vs. LM336B ?
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LM336 vs. LM336B ?

 
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Andre Majorel
Guest
Posted: Fri Sep 16, 2005 9:14 am    Post subject: LM336 vs. LM336B ? Reply with quote
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
(Counterfeit: osehiq@compression.com ipuzup@vigilant.com)
"La presse doit diffuser des idées saines." -- Serge Dassault,
propriétaire de la Socpresse.

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Roger Hamlett
Guest
Posted: Fri Sep 16, 2005 3:10 pm    Post subject: Re: LM336 vs. LM336B ? Reply with quote
"Andre Majorel" <cheney@halliburton.com> wrote in message
news:slrndil386.s25.cheney@atc5.vermine.org...
Quote:
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.
The standard National data sheet, has two columns in the electrical

characteristics section, one labelled 'LM136A/LM336A', and the other
'LM336B'.
The B has slightly worse tolerance on the initial reference voltage, but
about twice as good temperature stability.

Best Wishes
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Guest
Posted: Sat Sep 17, 2005 11:37 pm    Post subject: Re: LM336 vs. LM336B ? Reply with quote
Roger Hamlett schrieb:

Quote:
"Andre Majorel" <cheney@halliburton.com> wrote in message
news:slrndil386.s25.cheney@atc5.vermine.org...
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.
The standard National data sheet, has two columns in the electrical
characteristics section, one labelled 'LM136A/LM336A', and the other
'LM336B'.

This should probably read LM136A/LM236A. The LM136 has an operating
temperature range from -55°C to +150°C, the LM236 from -25°C to
+85°C.

Quote:
The B has slightly worse tolerance on the initial reference voltage, but
about twice as good temperature stability.

Best Wishes

The LM336 is specified at (2.49 +/- 0.10)V at 25°C, and the LM336B at
(2.49 +/- 0.05)V, which is twice as good. Between the two, there is no
difference in temperature stability. The stability of the LM136 and the

LM236 is worse because it refers to a larger temperature range.

Martin.

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Roger Hamlett
Guest
Posted: Sun Sep 18, 2005 12:35 am    Post subject: Re: LM336 vs. LM336B ? Reply with quote
<clicliclic@freenet.de> wrote in message
news:1126982269.683068.214760@g43g2000cwa.googlegroups.com...

Roger Hamlett schrieb:

Quote:
"Andre Majorel" <cheney@halliburton.com> wrote in message
news:slrndil386.s25.cheney@atc5.vermine.org...
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.
The standard National data sheet, has two columns in the electrical
characteristics section, one labelled 'LM136A/LM336A', and the other
'LM336B'.

This should probably read LM136A/LM236A. The LM136 has an operating
temperature range from -55°C to +150°C, the LM236 from -25°C to
+85°C.
No. There is a seperate column for the 136/236.


Quote:
The B has slightly worse tolerance on the initial reference voltage,
but
about twice as good temperature stability.

Best Wishes

The LM336 is specified at (2.49 +/- 0.10)V at 25°C, and the LM336B at
(2.49 +/- 0.05)V, which is twice as good. Between the two, there is no
difference in temperature stability. The stability of the LM136 and the

LM236 is worse because it refers to a larger temperature range.

Martin.
Sorry, but this differs completely from the sheet. The 136/236, has it's

own seperate column. I can only say what is printed on the sheets I
have...

Best Wishes
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Guest
Posted: Sun Sep 18, 2005 12:35 am    Post subject: Re: LM336 vs. LM336B ? Reply with quote
Roger Hamlett schrieb:

Quote:
clicliclic@freenet.de> wrote in message
news:1126982269.683068.214760@g43g2000cwa.googlegroups.com...

Roger Hamlett schrieb:

"Andre Majorel" <cheney@halliburton.com> wrote in message
news:slrndil386.s25.cheney@atc5.vermine.org...
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.
The standard National data sheet, has two columns in the electrical
characteristics section, one labelled 'LM136A/LM336A', and the other
'LM336B'.

This should probably read LM136A/LM236A. The LM136 has an operating
temperature range from -55°C to +150°C, the LM236 from -25°C to
+85°C.
No. There is a seperate column for the 136/236.

The B has slightly worse tolerance on the initial reference voltage,
but
about twice as good temperature stability.

Best Wishes

The LM336 is specified at (2.49 +/- 0.10)V at 25°C, and the LM336B at
(2.49 +/- 0.05)V, which is twice as good. Between the two, there is no
difference in temperature stability. The stability of the LM136 and the

LM236 is worse because it refers to a larger temperature range.

Martin.
Sorry, but this differs completely from the sheet. The 136/236, has it's
own seperate column. I can only say what is printed on the sheets I
have...

Best Wishes

I think there is little real disagreement. Unfortunately the original
poster didn't tell us if he meant the 2.5V versions or the 5V versions
of this chip. Unfortunately you mentioned only the LM336A and LM336B,
but not the LM336 (no A or B suffix) he also asked about. My point was
to explain the seemingly strange fact that the higher grade
LM236/LM236A
and LM136/LM136A have worse temperature stability specs.

My reference is the National Semiconductor pdf datasheet dated May
1998.
This has just two columns: one labelled "LM136A-2.5/ LM236A-2.5/
LM136-2.5/ LM236-2.5" and the other "LM336B-2.5/ LM336-2.5".

Martin.
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Cyrus
Guest
Posted: Sun Sep 18, 2005 7:45 am    Post subject: Re: LM336 vs. LM336B ? Reply with quote
Please Check this web site for the answer.

http://www.fairchildsemi.com/ds/LM%2FLM336BZ5.pdf

Hope it will help
Cyrus
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Cyrus
Guest
Posted: Sun Sep 18, 2005 8:03 am    Post subject: Re: LM336 vs. LM336B ? Reply with quote
Check this site too, Now the choice is yours, you want 2.5 volt or 5 volt
Programmable Shunt Regulator.

http://www.fairchildsemi.com/ds/LM%2FLM336Z25.pdf

Regards,
Cyrus
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Roger Hamlett
Guest
Posted: Sun Sep 18, 2005 8:35 am    Post subject: Re: LM336 vs. LM336B ? Reply with quote
<clicliclic@freenet.de> wrote in message
news:1126993443.786829.227190@g43g2000cwa.googlegroups.com...

Roger Hamlett schrieb:

Quote:
clicliclic@freenet.de> wrote in message
news:1126982269.683068.214760@g43g2000cwa.googlegroups.com...

Roger Hamlett schrieb:

"Andre Majorel" <cheney@halliburton.com> wrote in message
news:slrndil386.s25.cheney@atc5.vermine.org...
What is the difference between the LM336 and LM336B ? I can't
find any on the data sheet I have doesn't show any and yet
Farnell carries both (at very different prices).

Thanks in advance.
The standard National data sheet, has two columns in the electrical
characteristics section, one labelled 'LM136A/LM336A', and the other
'LM336B'.

This should probably read LM136A/LM236A. The LM136 has an operating
temperature range from -55°C to +150°C, the LM236 from -25°C to
+85°C.
No. There is a seperate column for the 136/236.

The B has slightly worse tolerance on the initial reference voltage,
but
about twice as good temperature stability.

Best Wishes

The LM336 is specified at (2.49 +/- 0.10)V at 25°C, and the LM336B at
(2.49 +/- 0.05)V, which is twice as good. Between the two, there is no
difference in temperature stability. The stability of the LM136 and
the

LM236 is worse because it refers to a larger temperature range.

Martin.
Sorry, but this differs completely from the sheet. The 136/236, has it's
own seperate column. I can only say what is printed on the sheets I
have...

Best Wishes

I think there is little real disagreement. Unfortunately the original
poster didn't tell us if he meant the 2.5V versions or the 5V versions
of this chip. Unfortunately you mentioned only the LM336A and LM336B,
but not the LM336 (no A or B suffix) he also asked about. My point was
to explain the seemingly strange fact that the higher grade
LM236/LM236A
and LM136/LM136A have worse temperature stability specs.
OK.


Quote:
My reference is the National Semiconductor pdf datasheet dated May
1998.
This has just two columns: one labelled "LM136A-2.5/ LM236A-2.5/
LM136-2.5/ LM236-2.5" and the other "LM336B-2.5/ LM336-2.5".
Mine was the 2004, printed databook. They look to have 'fiddled' a bit

with their layout and claims.
The usual explanation for a less stable version being more expensive, is
that they basically don't sell an of them!... :-)

Best Wishes
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