Instrumentation amplifier with programmable gain in sky130 by Phil Allen. CACE is required to run the testbenches.
Schematics for this amplifier are done in xschem and can be found in the xschem/ directory. Layouts for this amplifier are done in magic and can be found in the mag/ directory.
The CACE specification is in cace/sky130_pa_ip__instramp.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 characterization with CACE:
caceCACE can also be run with different arguments, for example:
cace cace/sky130_ef_ip__opamp.yaml --source schematic --parameter=<parameter_name>