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Jason Bowden

Datasheets: Technical Treatise or Marketing Manure?

Jason Bowden
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goafrit2
goafrit2
1/2/2014 9:06:40 AM
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Master
Re: Datasheet use
>> For those that do not read the datasheet, the engineer should already be familiar with the product line in some way.

I hope the person does not tell the HR or a hiring manager that he does not read datasheet. There is no way that can work out. It is simply not possible that an application engineer will not read datasheet and yet be in a position to do his job. How will the person understand the parts? It does not make sense to me. You put the product in a circuit and start doing what without taking time to read the datasheet that explains what to expect. 

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goafrit2
goafrit2
1/2/2014 9:03:28 AM
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Master
Re: They do not say it all
@Sunita, it is not really a great idea to be updating datasheets with any infomation that users want. There are standards in most products and once a company has met them, they should be fine. It could be challenging to support mass market by answering all their questions when all they buy is sub $100 order. For big clients, they get a different type of datasheets because they are actually assigned a dedicated team from the OEM.

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goafrit2
goafrit2
1/2/2014 9:01:17 AM
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Master
Re: datasheets
>> I think the companies should take extra effort to make sure that the datasheets are reliable.

Largely, we need to understand that products are made within a statistical deviation window which means some will perform better than others. We do not expect all to work exactly especially when you are buying these products from the company websites. Those are leftovers and most times degraded products made for some big clients. The not-great ones are renamed and sold to the outside world.

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RedDerek
RedDerek
1/2/2014 12:04:17 AM
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Master
Datasheet use
For those that do not read the datasheet, the engineer should already be familiar with the product line in some way.

I have found data sheets useful, even the old 4xxx CMOS ones, for I do not use the product often enough to know the pin out.

As for other datasheets, I do find the information useful. Knowing the block diagrams within the device helps me determine whether a product can be used in my application or not. Furthermore, if careful understanding of the product can be ascertained, the product could be used in other ways that the manufacturer may not have envisioned - take the 555 as a power supply circuit. I have used a few other parts in an unorthodox method because I got a better understanding of the inners of the ic.

I do agree that data sheets can be a form of marketing material - it should be. How else does a company convince an engineer to use the product.

In my 23+ years of design and semiconductor jobs, I have read and written hundreds of datasheets. Overall, I do find them useful.

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RedDerek
RedDerek
1/2/2014 12:03:58 AM
User Rank
Master
Re: datasheets
Thank you Actually, that was not the title I chose, but seems it was edited. My title was simply Datasheets: Technical or Marketing.

@Jason - Brad does make some interesting titles. ;-)

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SunitaT0
SunitaT0
12/31/2013 11:04:03 PM
User Rank
Master
Re: They do not say it all
I only wish that the writers put themselves into our shoes and think out of the box.

@JAYARAMAN, I totally agree with you. I think companies should always take feedbacks from end users even after the datasheet is made public. They can always update the datasheets for any info which the end users are looking for.

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SunitaT0
SunitaT0
12/31/2013 10:56:04 PM
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Master
Re: datasheets
The best way to learn a product in this industry is still the datasheet no matter your years of industry experience

@goafrit2, I totally agree with you. I think the companies should take extra effort to make sure that the datasheets are reliable.

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goafrit2
goafrit2
12/27/2013 6:28:07 PM
User Rank
Master
Re: datasheets
thin line difference between datasheet and factsheet

Unfortunately, that is not supposed to be. Datasheet = factsheet for a product except that marketing guys driven to give customers any metric they want will cook it. The customers want 20 bits. They ask you to expend the last 10 bits to get extra useless 4 bits when those have not real technical value. The extension could make the product not real but when you look deeply (if you have experience), there is no deception. It has 20 bits for the ADC with INR/DNR of +/-2LSB which means it is simply not close to 20bits. Take them to court, you will lose because the publication is factful.

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goafrit2
goafrit2
12/27/2013 6:23:23 PM
User Rank
Master
Re: datasheets
That is not to say that datasheets are perfect and all of them are 100% accurate.

Good point. The best way to learn a product in this industry is still the datasheet no matter your years of industry experience, you can learn as much from a product through its datasheet. That said, any company that cannot produce a decent believable datasheet does not deserve to be patronized. There are few things I think should not be controversial - one is datasheet. When you have the product and put it into action and the output does not conform to the datasheet, end the game!

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goafrit2
goafrit2
12/27/2013 6:19:05 PM
User Rank
Master
Re: datasheets
 I probably would not work for a company that reacts in a non professional manner over small topics. 

@Jason, certainly a blessing when one can make that decision. The job market makes it that people are stuck for years in places they do not like. And for the electrnics industry, unlike apps and software, taking the energy into a startup is not easy with a higher barrier of entry.

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