Hi, all. I am an analog circuit designer who is interested in designing sensor related circuits through this project. I believe sky130 is very well suited to be for sensors because of high voltage tolerance option etc. BTW, planning to release the original PDK that fits to Virtuoso? If possible, I want to try to design something analog on Cadence before trying to use open source simulator. And, I'm appreciate it if someone tells me whether there is open source simulator that can run something like periodic steady state (pac/pnoise, or harmonic balance noise), or not. These are necessary to simulate noise and transfer function in switched capacitor stuffs. Thanks.