MAXDAC is a library for interfacing with MAX520/MAX521 Digital-Analog converters (DACs). It utilizes the Arduino's I2C connection to communicate commands to the chip.
The library is fairly simple, but contains all the commands that can be used with this chip, and (I think) is fairly easy to use.
The download (below) contains all the library files, as well as an example that demonstrates the proper syntax and formatting for the MAX520/1.
I hope you like it, and please leave a message if you have any questions or comments!
Download MAX520/1 Datasheet