/sc-bandgap

Primary LanguageJupyter Notebook

Switch Capacitor Bandgap Reference

This is a test of the xschem tool. The schematic file sc_bandgap.sch contains the current top-level schematic of a switched capacitor bandgap reference.

Subcircuits

The subcircuit transmissiongate.sch and transmissiongate.sym is used to show the hierarchical structure of xschem. An ideal one pole opamp has also been created in the opamp_onepole schematic and symbol.

Skywater 130nm Path

It is assumed that the xschemrc from the open_pdks install is handle by the user of this repo. The repo was developed with the Skywater 130nm PDK install in the /usr/local/share/pdk directory. Follow the guide on open_pdks

Gnuplot

The simulation directory also contains a gnuplot script, used to plot the data generated by the xyce simulator. This is an alternative to the waveform graph inside xschem, which is included in the sc_bandgap.sch schematic.