programmable voltage reference IC...

[dtvonly]

I have looked for a programmable voltage reference, preferable via I2C protocol, with the output (reference) ranges from 1.024V to 3V. So far what I got by way of "programmable" is through the use of external resistors. This is not programmable but rather adjustable. I want this to be truly programmable using an MCU to get a reference output from 1.024V to 3V output. Does such a device exist?

 

[GonzoEngineer]

I would use a DAC (Digital to Analog Converter)

 

[dtvonly]

Yes. I have gone that route now since it is much more readily available. Thanks.