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Best and Worst Component Manufacturers

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Gibson486:

--- Quote from: David Hess on January 27, 2019, 04:27:08 am ---
--- Quote from: TrickyNekro on January 27, 2019, 03:32:17 am ---AD is winner winner chicken dinner, their analog is top. Never had to think twice when using them. I also used FET drivers and isolators, again no complains at all.
And I like their datasheets, they are not overwhelming, accurate and on point. Not much else to say.
--- End quote ---

I like the older AD, National, and LT datasheets which showed equivalent or complete schematics or at least input and output structures because some characteristics are just not listed.

Which way do bias currents flow?  I have had to disqualify several TI parts because I had no idea, no way to find out from the datasheet, and TI was more interested in why I wanted to know than telling me and I would have had to verify it anyway.

AD's web site really pisses me off; why would I possibly want to sort by part number?  I guess it is a good thing that I cannot.  TI's site hides low cost parts in favor of high cost ones.  Microchip does not properly list parts from their acquired businesses; who knew they make depletion mode MOSFETs now?

--- End quote ---

Microchip makes a lot. They actually make good op amps, for half the price. Unfortunately, everything is a 5V or less part.

Gibson486:

--- Quote from: tsman on January 26, 2019, 06:57:20 pm ---Maxim - The parts are generally good but availability can be awful. If you don't want the 1 variant that is stocked by the distributors then you're going to need to order direct in massive quantities. You also can't rely on that 1 variant actually being in stock next time you order.

--- End quote ---

When I worked for a large headphone company, I was instructed to never use Maxim parts because of that very issue.

T3sl4co1l:

--- Quote from: Gibson486 on January 28, 2019, 05:58:39 pm ---TI, on the other hand, has a great forum and the people who respond do a good job.

--- End quote ---

Either you've gotten lucky, or you asked about a fairly common problem, with a common answer.

I've never had a single question that was answered satisfactorily, typically taking three or four back-and-forth responses to insist on what it is I'm after.  Regardless of how much background, scope, detail or analysis I put in the original post.

So they can't read.  I doubt they are paid well enough to, anyway.  (If they were worth it, they'd be in the design department.)

Tim

SiliconWizard:

--- Quote from: T3sl4co1l on January 28, 2019, 07:55:53 pm ---
--- Quote from: Gibson486 on January 28, 2019, 05:58:39 pm ---TI, on the other hand, has a great forum and the people who respond do a good job.

--- End quote ---
I've never had a single question that was answered satisfactorily, typically taking three or four back-and-forth responses to insist on what it is I'm after.  Regardless of how much background, scope, detail or analysis I put in the original post.

--- End quote ---

Same here.
And I've seen countless threads ending up that way, some even not answered at all.

The best support I've seen on the other hand was with On Semi. Very qualified application engineers, and you didn't even need to be a big company to benefit from that.

bloguetronica:
Personally, I had a few bad experiences with TI. One was when using the TLV76050. This regulator tends to fail when outputting a bit too much current. The other one I had was when using TPS55010. That one would fail even when idle, starting to consume too much current and eventually burning out. Lets say that I've bought the evaluation board to no avail. In total damaged two parts. Even though, TI chips are generally good.

With Analog Devices, I had several issues and questions when reading the datasheets. I had to suggest corrections regarding the SPI clock phase and polarity in the AD5932 datasheet, and also did the same regarding other two products (but those were never accepted). The most recent problem I had was with the AD9102 datasheet: it is terse and rather cryptic.

On the good side is Linear Technology. Their components are very good and the datasheets quite complete. I didn't used them before because, before the merge with Analog Devices, their components only existed on some distributors.

Kind regards, Samuel Lourenço

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