Forum Post: DAC with standard I2C interface promotion

Hi BU team

My custoemr Roch-chip wanted a DAC to meet below specs.

1. must support the standard I2C interface, for GPIOs don't work as non-standard  I2C interface under Linus OS.

2. prefer at least four channel

3. prefer 12bit resolution

4. the voltage output range is 0.8V~3.4V

Customer checked DAC7678 but it didn't work.

What are your proposals based on above spec?

thanks