The application note AN64275 demonstrates how to increase the resolution of the 8-bit DACs available in the PSoC 3 and 5 devices up to 12-bits using additional PSoC resources.
Four different methods are discussed in the application note and a library with components implementing three of these concepts is provided. Three simple example projects using each of these components are included.
DVDAC - 9 to 12 bit Dithered Voltage DAC
MIDAC - 9 to 11 bit Modulated Current DAC
PIDAC - 9 to 11 bit Parallel Current DAC
This application note is available at http://www.cypress.com/?rID=47478
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