| Analog SPICE Circuits on SKY130 |
| Copyright 2026 Philip Pilgerstorfer |
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| This dataset is released under the Apache License, Version 2.0 (see LICENSE). |
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| ================================================================================ |
| This dataset contains Derivative Works of three upstream corpora. Their |
| original licences are reproduced verbatim in the LICENSES/ directory and MUST |
| be included in any downstream redistribution of this dataset. |
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| 1. Open Circuit Benchmark (OCB) — Ckt-Bench-101 + Ckt-Bench-301 |
| Upstream: https://github.com/zehao-dong/CktGNN |
| Paper: Z. Dong, W. Cao, M. Zhang, D. Tao, Y. Chen, X. Zhang. |
| "CktGNN: Circuit Graph Neural Network for Electronic Design |
| Automation." ICLR 2023. |
| Licence: MIT (see LICENSES/LICENSE-OCB) |
| Use in this dataset: |
| The 60,000 rows where `source_dataset == "ocb"` are derived from OCB's |
| behavioural opamp graphs. Each graph was remapped from its upstream |
| (gm, R, C) sub-circuit representation to a transistor-level SKY130 |
| netlist via an equivalent-subcircuit library, then simulated in ngspice. |
| Circuit IDs preserve the upstream sub-benchmark partition: |
| ocb_sky130_101_* — 10,000 graphs (Ckt-Bench-101, diversity sample) |
| ocb_sky130_301_* — 50,000 graphs (Ckt-Bench-301, BO-curated) |
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| 2. AnalogToBi |
| Upstream: https://github.com/Seungmin0825/AnalogToBi |
| Paper: Seungmin Lee et al. "AnalogToBi: Device-Level Analog Circuit |
| Topology Generation via Bipartite Graph and Grammar-Guided |
| Decoding." |
| Licence: MIT (declared in upstream README; see LICENSES/LICENSE-AnalogToBi |
| for the note on the missing upstream LICENSE file and the |
| reproduced standard MIT text) |
| Use in this dataset: |
| The 67,736 converged + 2,177 failed rows where |
| `source_dataset == "analogtobi"` are derived from AnalogToBi's 3,350 |
| textbook + paper analog-circuit topologies. This includes a 1× default- |
| sizing baseline and a 20-point Latin-Hypercube sweep over W, L, Ibias, |
| and CL applied by our simulation pipeline before ngspice runs. Upstream |
| netlists ship in Cadence Spectre dialect; our pipeline converted them |
| to ngspice dialect. |
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| 3. AnalogGym |
| Upstream: https://github.com/CODA-Team/AnalogGym |
| Paper: CODA-Team. "AnalogGym: An Open and Practical Testing Suite for |
| Analog Circuit Synthesis." ICCAD 2024. |
| doi:10.1145/3676536.3697117 |
| Licence: BSD 3-Clause (see LICENSES/LICENSE-AnalogGym) |
| Use in this dataset: |
| The 500 rows where `source_dataset == "analoggym"` are derived from |
| AnalogGym's 22 ngspice-ready SKY130 topologies (16 amplifiers + 1 LDO |
| + 4 voltage references + 1 charge pump), each expanded by a 20-point |
| LHS sweep. The charge-pump sub-circuit is a structural homage of the |
| SMIC 130 nm PLL charge pump from the AnalogGym repo — model-name |
| tokens were remapped to SKY130 equivalents and layout-dependent |
| parameters were stripped. |
| Per the BSD 3-Clause no-endorsement clause: neither the names of |
| AnalogGym, CODA-Team, nor any of their contributors may be used to |
| endorse or promote products derived from this dataset without specific |
| prior written permission. |
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| Third-party tools and data referenced but NOT redistributed |
| ================================================================================ |
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| - SkyWater SKY130 PDK (Apache 2.0) — https://github.com/google/skywater-pdk. |
| The shipped netlists reference SKY130 `.lib` and `.model` names (e.g. |
| `sky130_fd_pr__nfet_01v8`) but do not embed any PDK model files. |
| Users wishing to re-simulate must install the PDK themselves (e.g. |
| via https://github.com/efabless/volare). |
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| - ngspice — http://ngspice.sourceforge.net/. The simulator used to |
| produce every row's metrics. Not redistributed. |
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