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Analog Angle

Did You Say 'Programmable Analog'?

Bill Schweber
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Brad Albing
Brad Albing
5/31/2013 4:24:41 PM
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Re: Highly integrated ICs
OK - sounds right. I know that Maxim part is spec'd up to 125deg-C, so that makes it quite good for even the most stringent inductrial application - and again, I'm thinking of guys like Rockwell who always want that temp range - even if they don't really need it.

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JAYARAMAN KIRUTHI VASAN
JAYARAMAN KIRUTHI VASAN
5/31/2013 12:53:46 PM
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Re: Highly integrated ICs
@Brad,

I was just mentioning an application in clinical laboratory where tissues culture will be done at a controlled temperature of upto -40 degrees.

I was not meaning that the chip may not suit higher temperature measurement.

 

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Brad Albing
Brad Albing
5/30/2013 1:14:46 PM
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Re: Highly integrated ICs
@JK - that Maxim part is a nice one and takes a lot of the difficulty out of typical temperature controller designs. I note that you said you would certainly use this part in a refrigeration (freezer) application. Did I understand you correctly that would perhaps not use this in a furnace application?

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JAYARAMAN KIRUTHI VASAN
JAYARAMAN KIRUTHI VASAN
5/30/2013 1:38:20 AM
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Master
Re: Highly integrated ICs
@Brad,

'So you're saying that the use of integrated analog ICs might be good for designs that will not have large production volumes?'

For example, the IC from Maxim MAX31855 Cold-Junction Compensated Thermocouple-to-Digital Converter is a teriffic one when used in a temperature control function with niche products. When it comes to the low cost temperature controllers (chinese ones cost around 12$ ) used in furnaces, the cost of this IC could make the manufacturer think twice.

I would, however, use this IC in a deep freezer used in a clinical laboratory without a ny hesitation. The functionality and not the cost is relevant in this case. As designers and customers, we may have to find a way on bringing such nice chips to common applications.

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Brad Albing
Brad Albing
5/28/2013 6:04:06 PM
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Re: Highly integrated ICs
JK - I'll take a closer look at that part to see what it does and to see if I can think of additional ways to apply it. Thanks.

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Brad Albing
Brad Albing
5/28/2013 6:02:56 PM
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Re: Highly integrated ICs
OK - I understand. Thanks for the additional comments.

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JAYARAMAN KIRUTHI VASAN
JAYARAMAN KIRUTHI VASAN
5/28/2013 12:56:12 PM
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Master
Re: Highly integrated ICs
@Bill,

ADS1298 from TI is a highly integrated IC and has unique programmable interface. Though it aptly suits ECG and EEG measurements, in principle, it can be applied to multi-channel measurement applications, in general.

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DirceuRodriguesJr
DirceuRodriguesJr
5/28/2013 10:23:04 AM
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Re: Highly integrated ICs
Brad,

    I was trying to answer that question at the end of the blog from my point of view (more worried about the cost), but I agree with you: There should be numerous reasons to use this type of integrated circuits, regardless of volume.

Thank you for your remarks.

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Brad Albing
Brad Albing
5/28/2013 9:11:51 AM
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Re: Highly integrated ICs
Dirceu - So you're saying that the use of integrated analog ICs might be good for designs that will not have large production volumes? I can see where that is a valid use of the devices to get a product done without the need for much design engineering time, but it would seem valid for products with large manufacturing volumes, too.

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DirceuRodriguesJr
DirceuRodriguesJr
5/24/2013 7:56:57 PM
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Highly integrated ICs
"Do you welcome highly integrated, functionally targeted ICs? Or do you chafe at the apparent restrictions and constraints in overall design flexibility they inherently must provide, to meet their functional and performance requirements?"

    Maybe for products that do not have large production (special projects) or requiring a short time to market, IMO. In other cases, I think can be a way to abstract the project peculiarities to a team with no experience in that area. Also, when using a very specific product, we can get tied in a particular manufacturer or the cost may be very high (or not, since all hard work is already done for us). In some cases there is no alternative. As examples I can cite some motor controllers from IR, TI , Allegro or single chip electricity meters. These SoCs do almost everything for us.

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