I use a lot of ADS7866's. It's a cute little SOT23 12-bit ADC. There's a single power/VREF pin, and it generates the SAR data as the SPI interface is clocked.
-- John Larkin Highland Technology, Inc jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
To my understanding "Application Notes" were mostly written by newly hired engineers so that they would be familiariarized by the new product:-).
If a company would have really wanted to create high quality examples, they would have put highly competent engineers to write those Application Notes (AN) :-).
If it wasn't for those example circuits in the notes that rarely are useful in real life, Slowman would be lost, much more than he is now.
Jamie
On Thursday, 13 November 2014 11:13:47 UTC+11, Maynard A. Philbrook Jr. wr ote:
mo
with
ly
be that good. They don't have to work as well as they might. They certainl y can't be relied as examples of "best practice".
I wonder why Jamie thinks that? Application notes are useful, and the examp le circuits often give an indication of some of the second-order effects yo u have to worry about, but competent engineers usually know how to do bette r in their own application.
Jamie doesn't come across as a competent engineer, and working in his kind of low-volume niche market this may not matter too much. The competition is n't going to bother to try to take over the market, because there's not a l ot of market there to take over.
-- Bill Sloman, Sydney
The twelve-bit environment is a lot less demanding than the 20-bit environment, and John Larkin isn't famous for dealing with problems before he's had his nose rubbed in them. He's nowhere near timid and anxious enough to be a really good analog engineer.
-- Bill Sloman, Sydney
It is also only 12 bits. The OP is using a 24 bit part.
-- Rick
references
it%20ADC.html
Not in this case.
?-/
the references
t%20ADC.html
demo
with
expecially
be that good. They don't have to work as well as they might. They certainly can't be relied as examples of "best practice".
Not to write them, they are too valuable for that. They should check the AppNotes and guide the newly minted engineers to do less apparently absurd stuff.
?-)
could also be used to power an ADC. I have an LTC2440 (that's the part I have to use) it's a 24bit sigma delta, but I only need about 16bits from it.
100mV ripple.references?
the
the
references
t%20ADC.html
Eeeek. The ground has fallen out from under me. Or has it completely?
?-)
Perhaps I should have said instead of "highly competent" I should have said "seasoned" i.e. someone close to the retirement age. We know all the pitfalls that might bite the unexperienced AP reader.
Not at all comparable, it is not a D-S but a SAR and these are indeed very sensitive to supply noise. But in this case it will be saved by 1) being only 12 bits and 2) clocking out the data synchronously with sampling, so that the digital activity does not disrupt the sampling point.
-- John Devereux
On a sunny day (Wed, 12 Nov 2014 18:00:50 -0800 (PST)) it happened Bill Sloman wrote in :
You know, Slow, some days ago when reading your self promoting drivel about 'tinkering' and 'that not being engineering or science' remembered Volta, activating frog legs. When you learn more about electricity later you will be taught that 'Volt' was named after the guy. The unit Slom' we will have to wait for a bit or 2 :-) Slum?
Why? There were a lot more things waiting to be discovered back then.
It has been mentioned.
Likewise the for Pant', and it's subdivision, the Panteltje.
I imagine the wait for either will be equally long. As far a self-promoting drivel goes, you'd be in the same class as John Larkin, way ahead of me.
-- Bill Sloman, Sydney
On a sunny day (Thu, 13 Nov 2014 09:49:54 GMT) it happened Jan Panteltje wrote in :
OK, got it, Slom, is the amount one thinks one is superior to everybody else. Slom = self_image / image_of_others
And we take your postings as reference,
1 Slom = bill_slomans_self_image / bill_slomans_image_of_othersBe proud of it!
Normal peoples Slom is measured in mSlom.
Sloman
ow
ind
not a
The frogs legs were just the sensors - you've missed the point (as you usua lly do).
Which others? If the others included Phil Hobbs, Winfield Hill, Spero Pefha ny and the like I'd be hard pressed to get above one.
It's not a very useful measure, because it all goes on inside single head - mine in the example you've given. Clearly, you haven't a clue what might b e going on in my head - though you are silly enough to claim that your imag ination can supply the missing information. I'd propose the Pantel
1 Pantel = Jan Panteltje's self-image/ other people's image of Jan Pantel tjeThe "other peoples image" would be averaged over as many people who could b e persuaded that Jan Panteltje's image was worth thinking about (probably n o more than three or four).
People with some grasp of how they look to other people would come in aroun d one.
Yours would seem to be in the hundreds. Krw and Jamie would score higher - not because they take themselves particularly seriously, but because they p ost at all when most rational people think that they'd improve the signal t o noise ratio around here by posting a whole lot less.
-- Bill Sloman, Sydney
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.