Add TI DACx0504 family
I added the DACx0504 family of Texas Instruments quad output DACs. Analogous to the existing DACx0502 symbols, DAC80504 is the parent symbol, DAC70504 and DAC60504 are derived from it.
- Datasheets (they all link to SBAS871C):
- Footprint
- There is a merge request for the matching footprint: kicad-footprints!3641 (merged)
- There is a merge request for the matching footprint generator script: kicad-footprint-generator!1126 (merged)
- I did not stack Pins 6 and 17 for two reasons:
- According to the datasheet "The thermal pad should be connected to any internal PCB ground plane" (p. 5), but not "must be"
- Leave the choice of split vs. combinded digital/analog GND planes to the circuit designer
- The default footprint is set to Texas_RTE0016D_WQFN-16-1EP_3x3mm_P0.5mm_EP0.8x0.8mm_ThermalVias, because the datasheet specifies: "The thermal pad should be connected to any internal PCB ground plane using multiple vias for good thermal performance." (p. 5)