Finding a Pin Compatible Alternative to the DAC0830

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In summary, the person is looking for a part similar to the DAC0830 that is readily available. They mention that it is available on Digikey, Newark, and Allied websites. They suggest contacting different chip manufacturers such as Infineon, Maxim, Atmel, Microchip, and Intersil. They also mention the option of building a plug-in module using other IC's. However, the person states that they live in South Africa and there are limited retail suppliers available.
  • #1
juming
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does anyone know of another part similar to this dac?
like a pin compatible one? because this one is not readily available here, (even though it states that they are in full production on the national website)

"The DAC0830 is an advanced CMOS/Si-Cr 8-bit multiplying
DAC designed to interface directly with the 8080, 8048,
8085, Z80®, and other popular microprocessors."
"The DAC0830 series are the 8-bit members of a family of
microprocessor-compatible DACs (MICRO-DAC™)."
from the National Semi website.

thanks :)
 
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  • #2
Digikey has them:
http://www.digikey.com/scripts/DkSearch/dksus.dll?Criteria?Ref=3780&Site=US&Cat=31785614

So does Newark:
http://www.newark.com/NewarkWebComm...amSearch=true&st=parametricSelection&x=42&y=7

So does Allied:
http://www.alliedelec.com/Search/SearchResults.asp?SearchQuery=DAC0832&Submit=find+it%21

There has to be a distributor close to you that has them.

You can look through Maxim's inventory to see if they have a part. Start calling reps(or e-mailing) from the various chip manufacturers. Try Infineon, Maxim, Atmel, Microchip, Intersil...

http://www.maxim-ic.com/new_product.cfm/prodline/4
http://www.analog.com/en/subCat/0,2879,761%255F795%255F0%255F%255F0%255F,00.html

Another option is to build a plug-in module using other IC's. They make these neat little SMD to DIP boards that would allow you to use something from another manufacturer.
 
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  • #3
i don't know who allied is... but under that link there's a 'quantity in stock' and a 0 in that column.

"There has to be a distributor close to you that has them. "
i live in the bush... well almost! i live in south africa.. there are very few retail suppliers here :(
 

1. How do I determine if a DAC0830 is pin compatible with a potential alternative?

The best way to determine pin compatibility is by comparing the pinout diagrams of the two components. The DAC0830 datasheet should have a pinout diagram, and you can find the same for the potential alternative by searching for its datasheet online. Make sure to compare the function of each pin, not just the physical placement.

2. What are the most important specifications to consider when looking for a pin compatible alternative?

The most important specifications to consider are the number of bits, the voltage range, and the output current of the DAC. These must match or be within the acceptable range for the alternative component. Additionally, make sure to check for any special features or functions that may be required for your specific application.

3. Can I use a pin compatible alternative if it has a different resolution?

It is generally not recommended to use an alternative with a different resolution than the DAC0830. This can result in inaccurate or inconsistent output, as the resolution determines the smallest change in voltage that the DAC can produce. However, if the resolution of the alternative is higher than the DAC0830, it may still be compatible.

4. Are there any other factors to consider when choosing a pin compatible alternative?

In addition to pin compatibility and key specifications, it is important to consider the overall performance and quality of the alternative component. This includes factors such as accuracy, linearity, and settling time. It is also helpful to read reviews and compare prices to ensure you are choosing the best alternative for your needs.

5. Where can I find a list of pin compatible alternatives for the DAC0830?

There are several resources available online that provide lists of pin compatible alternatives for various electronic components. Some examples include manufacturer websites, engineering forums, and online component databases. It is important to always double check the compatibility of any alternative before making a purchase.

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