This is a 4 channel 12-bit digital to analogue chip. It has buffered outputs, non-volatile memory and latches to synchronise the output voltages. I am intending to use this on my PSU project and my electronic load project. It has an I2C interface making it ideal for fast interfacing with minimal pins required.

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22187E.pdf

The Eagle library is available from the Farnell website as a script but is also here:

https://www.dropbox.com/s/qsf117s8xstmd1z/GD_MCP4728.lbr?dl=0

The MCP4725 is the single channel version.

Datasheet: http://www.farnell.com/datasheets/1470577.pdf

The Eagle library is available from the Farnell website as a script but is also here:

https://www.dropbox.com/s/3e9hgs6sxingyf3/GD_MCP4725.lbr?dl=0