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Some context: >The AD1139 is the first DAC offering 18-bit resolution (1 part in 262,1441) and true 18-bit accuracy in a component size hybrid package. A propr
by desdiv 5y ago
Some context:
>The AD1139 is the first DAC offering 18-bit resolution (1 part in 262,1441) and true 18-bit accuracy in a component size hybrid package. A proprietary bit switching technique provides high accuracy, speed and stability without compromising small size or low cost.[0]
Just curious, I looked up the price:
Digikey, 1 unit: $2,449.80 USD [1]
Analog Devices, 100-499 units: $1706.58 USD
Analog Devices, 1000+ units: $1706.58 USD
[0]: https://www.analog.com/en/products/ad1139.html https://www.analog.com/en/products/ad1139.html
[1]: https://www.digikey.com/en/products/detail/analog-devices-inc/AD1139J/616867 https://www.digikey.com/en/products/detail/analog-devices-in...
- metafex 5y agothat's interesting, ADI doesn't even list it anymore on their website but it's marked as still active. i guess it's still used in some test&measurement equipment.
- the__alchemist 5y agoThere seems to be no price cap on AD components! Solid stuff at a range of prices. It's sometimes tough to tell what makes the super-expensive ones different. Might be a little extra precision (etc) that's justified in niche cases.
- jeffbee 5y agoIsn't is just market segmentation? The only people who need this thing are building test equipment that costs big money regardless.
- coretx 5y agoI'd love to have one in my radio
- GeorgeTirebiter 5y agoHow could one use an 18-bit D/A in a radio? (an 18-bit A/D is a different story).
- madengr 5y agoI suppose if you were doing some PA linearization techniques (e.g. digital predistortion), one could use that dynamic range.
- MisterTea 5y agoI'd say volume. These are highly specialized devices which require a lot of careful development. The volume might be a few thousand a year if even. So seeing super high speed/precision ADC's costing 1000+USD isn't so surprising.
- jareklupinski 5y agothis feels like something to throw into a satellite for processing/digitizing the output from a custom image sensor? or maybe some incredibly edge software-defined radio application...