I have an Adafruit ADS1015 I2C ADC+PGA ADC
on the way.
TI Datasheet here
I've connected some I2C devices using an I2C driver in OBEX. Sometimes it is as easy as looking at the Ardunio code and recreating it in SPIN. While I wait for it to arrive I figured I see if anyone else has used this, and if they wanted to share the code for it.