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Old 13th October 2015, 12:44 AM   #1
wdecho is offline wdecho  United States
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Default LM3875 chip End Of Life

I just got a notice from Digikey announcing the end of life for the LM3875 chip and I decided to check Mouser and sure enough they have it as end of life also so if you want one you better act fast. I have built both the 3875 and 3886 and to me the 3875 sounds better. Bad news for Gainclone builders. It is a very good sounding amp for not much money.
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Old 13th October 2015, 03:23 PM   #2
johnr66 is offline johnr66  United States
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I guess TI are making cuts. I got a notice that the LM4562 op amp in 8pin DIP is cut as well. I guess the surface mount ver continues. Haven't checked if the LME version persists.

It was around this time two years ago ST Micro cut half their analog audio power ICs including the TDA2050, 2040, 2030A and a bunch of others.
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Old 13th October 2015, 03:30 PM   #3
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lme49810, lme49811, lme49830, and lm4702 are also announced End of Life
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Old 13th October 2015, 03:41 PM   #4
johnr66 is offline johnr66  United States
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Found this list as well:
LME49610TS/NOPB, LME49600TS/NOPB, LME49870MA/NOPB, LME49860MA/NOPB, LME49860NA/NOPB, LME49720MA/NOPB, LME49720NA/NOPB, LME49710MA/NOPB, LME49710NA/NOPB, LME49710MAX/NOPB

Oh, and the LM380 and the LM386 (through hole ver) are cut.

I guess if you want to play, you better learn surface mount techniques

Last edited by johnr66; 13th October 2015 at 03:49 PM.
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Old 13th October 2015, 05:34 PM   #5
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Quote:
Originally Posted by johnr66 View Post

I guess if you want to play, you better learn surface mount techniques
I guess, if you want to play, you better learn Class-D fast.

Sorry for all the LME lines.
Easy to design a below 0.0001% THD from those.
:-(

Edit:
Quick inventory of my own stock,
I need to get
7x 49830
4x 49811 (as spares)
and at least 17x 49990
...

Last edited by palstanturhin; 13th October 2015 at 05:46 PM.
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Old 13th October 2015, 09:47 PM   #6
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if there will be a demand for these parts, i bet china will supply them.
and for pocket money, you gona getthe junk.
nothing new
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Old 13th October 2015, 10:42 PM   #7
kouiky is offline kouiky  United States
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I wonder if the impending recession is playing a part in the decisions to cut these products?
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Old 13th October 2015, 11:05 PM   #8
wdecho is offline wdecho  United States
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Quote:
Originally Posted by kouiky View Post
I wonder if the impending recession is playing a part in the decisions to cut these products?
Probably not, discreet components are being fazed out at an alarming rate. SMD is the future of electronics. I bought some SMD J-fets just to see how small they were and maybe use them one day. About half the size of a grain of rice and you need to make 3 solder connections. I have to use a magnifying lamp to work on proto boards with discreet components.
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Old 13th October 2015, 11:08 PM   #9
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Or there's little sense in having BOTH 3875 and the 3886? Per other threads, looks like TI is consolidating fabs and, well, high-performance non-SMT parts are in low demand.

Which sucks for us in many ways. I don't think SOIC is that bad, though.
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Old 15th October 2015, 07:04 PM   #10
Bare is offline Bare  Canada
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Quote:
Originally Posted by kouiky View Post
I wonder if the impending recession is playing a part in the decisions to cut these products?
Nice World view you have there .
Those who believe that there is an "impending recession" looming off stage, (for most All of the last 5 decades I've been aware of this phenomena)
have always been with us.
Best get a placard and parade on street corners .
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