Looks like it's a done deal--$20B later.
Let's hope Maxim becomes AD and AD doesn't become Maxim.
I was OK with TI buying National, because NS had sort of lost their way by that point--they never did get over the idea that 1 mV was low offset or 400 ns was fast settling or 5 nV/sqrt(Hz) was low noise.
Ditto with this one, as long as the AD culture comes out on top. If the Maxim culture wins, we're all doomed. :(
Cheers
Phil Hobbs
Boeing bought McDonnell Douglas. Look how that turned out.
HP bought Compaq. Look how that turned out.
Verison bought Yahoo. Look how that turned out.
There is a reason that companies become weak and vulnerable to takeovers.
I'm having to use a Maxim part because the ADI part is made of unobtainium. Maxim quoted a 6 week lead time which beats the ADI quote of not very subtle laughing about which YEAR I might see parts. I did get a few samples from ADI after a couple of months. Then Maxim changed the delivery from 6 weeks to 16 weeks with much laughter. I guess the ADI culture is already rubbing off on Maxim.
On a sunny day (Fri, 3 Sep 2021 23:20:46 -0000 (UTC)) it happened Steve Wilson snipped-for-privacy@not.com wrote in <XnsAD9AC4CD119C0idtokenpost@144.76.35.252>:
And Nvidia wants to buy ARM...
When you have trouble getting Maxim parts that only shows that you are too small to be important. You belong to the crowd of yelling dwarfs.
I had a project with a wafer tester company that used to be HP and they used Maxim as a foundry for custom chips. Repeatedly. I heard no complaints.
And at Infineon Fiber Optics the Maxim salesdroids would camp at the doors, so to say. Our parent company did not like that, so they sold the spinoff to Finisar. I spent some time in SJ for the tech transfer with a few other people. Me as a freelancer :-)
Gerhard
Am 04.09.21 um 00:06 schrieb Phil Hobbs:
They got that working with Hittite. Hittite wanted to know everything about you, including the cup size of your SO b4 they would even give you a data sheet. Now you get Hittite at Digikey.
cheers, Gerhard
[...]
Analog Devices bought Hitite:
Lets hope that nobody sets eyes on Minicircuits.
And before that, PMI. They generally did well there, except that they discontinued some of their second-source parts such as the AD OP27.
Cheers
Phil Hobbs
Excuse me, the term is "Artisanal manufacturer." :-P
There was no shortage of complaints when Tektronix used them, but I guess now's as good a time as any to get past the 2465B U800 thing.
In my experience, Maxim's availability hasn't been bad lately (meaning for the past few years.) And they no longer seem to be in the habit of publishing data sheets for parts that never ship in quantity.
I'm about to spin a board with the MAX5719A 20-bit DAC, which is about
1/3 of the price of anyone else's with only slightly worse specs. So we'll see how THAT goes.-- john, KE5FX
Maxim STARTED with buying the Tektronix fab.
Cheers, Gerhard
Most of them die from that chip/hybrid, IIRC. If you try to buy a scope for replacement parts, it is the only one that is defunct. You cannot get them in new state.
Cheers, Gerhard
lørdag den 4. september 2021 kl. 22.46.42 UTC+2 skrev Gerhard Hoffmann:
Horizontal output chip:
Similar problems afflicted the trigger chips in the TDS 694C, although the failures are abrupt and irrecoverable in that case. There is often visible heat damage on the package surface.
Someone did a piggyback board to replace U800 with a bunch of CFB amps and muxes:
-- john, KE5FX
I scored a tube of the 694C trigger chips some years ago. Looks like mine needs one--it won't trigger off channels 3 or 4 at this point.
Cheers
Phil Hobbs
This was strictly a capacity decision and happened relatively early in my employ at ADI. At that time ADI's wafer fab didn't have silicon-nitride capacitors as part of the process used for the OP07 and OP27, only silicon dioxide so the ADI die were about 50% more area than the PMI versions because of the on-chip compensation capacitance. Since ADI kept the PMI fab going for a long time it didn't make sense to continue the larger version.
My first project at ADI was a chip-and-wire hybrid for a downhole (read as incredibly space-constrained) application. It used three OP07s (actually OP05, the same die without Zener-zapped, there's a story there) and I ended up having to use the PMI part. This was a couple of years before ADI bought PMI and management was NOT happy about having to use a competitor's part, and a much more expensive one to boot, but that's what we did. This was nearly 40 years ago.
Do you know anything, technical or biz-wise, about the MAX9690 ecl comparator?
We designed them into the NIF master timing system and, after about a year, they started failing in peculiar ways. Baking them sort of fixed them for a while. Maxim discontinued the part, which we only discovered when orders never showed up.
The "replacement" was the MAX9691, which has back-back diodes across its inputs. In a comparator!
I found some nice guy at Maxim and explained our problem, and he sampled me 3000 pieces of the 9691. We had to kluge the circuit to get them to work.
That sounds like the classic behavior that occurs with too much reverse Vbe. It degrades beta over time. Baking can recover (anneal) it, kind of, but the damage continues over time. High-speed bipolars have very low tolerance for reverse Vbe, like just a couple of volts.
Pretty much all the current line of superfast ADI comparators came out of the group I worked in. I know we looked at the 9690, which I think might have come first, and we wondered how it could be robust. I guess we were right ;)
Back-to-back diodes are fine for an op-amp but not a very good idea for a comparator, as you found. But they're a quick fix and much easier than redesigning the whole chip. So I guess they slapped in a couple of diodes hoping not to lose too much business while they simultaneously embarked on a redesign.
As kludges go, yours doesn't look too bad.
Just found this in the folder C:\JOBS\NIFT\HORROR.
Who was "BTC in Minnesota"? Hopeless to try to search for the firm now, just pulls up stuff about bitcoin
Why is their selection of fast low-voltage CMOS op amps so bad though, TI really stomps them in that dept.
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