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

[1]: https://www.digikey.com/en/products/detail/analog-devices-in...