RTimothyEdwards / sky130_ef_ip__rdac3v_8bit

8-bit resistor ladder DAC with 3.3V output range

Analog IP design example: 8-bit Resistive ladder DAC

This is a simple 8-bit DAC demonstrating the use of the CACE system. It requires CACE to run the testbenches.

Schematics for this DAC are done in xschem and can be found in the xschem/ directory. Layouts for this RDAC are done in magic and can be found in the mag/ directory.

The CACE specification is in cace/sky130_ef_ip__rdac3v_8bit.yaml. Testbench schematics are in the cace/templates/ directory. Note that testbenches are editable in xschem, and netlists can be generated, but netlists contain variables that must be substituted by CACE and cannot simulate prior to variable substitution by CACE.

To run CACE in GUI mode:

cace-gui cace/sky130_ef_ip__rdac3v_8bit.yaml

CACE can also be run from the command line, for example as:

cace cace/sky130_ef_ip__rdac3v_8bit.yaml --source schematic --parameter=<parameter_name>