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This work, in turn, does not intend to replace human designers with algorithms, but support their qualities in the established flow. Here, the performance space of analog ICs is modeled by PVT-aware neural networks and visualized with parallel coordinate plots. Such a responsive visualization gives insights into the relations of parameters through interactive exploration where\n            <jats:italic toggle=\"yes\">any<\/jats:italic>\n            parameter can be the cause while\n            <jats:italic toggle=\"yes\">all<\/jats:italic>\n            others show the immediate effect. Thus, complex decision-making problems based on the experience of seasoned designers, such as circuit sizing or topology selection, are transformed into intuitive perceptual problems. Through the responsiveness and immediacy of the implementation, designers are encouraged to explore the entire performance space instead of basing all decisions on previous designs, never leaving the beaten path. A data generation and training procedure for surrogate models is outlined. Models for three operational amplifiers in three different technologies illustrate the applicability and feasibility of the presented approach. Additionally, a web-based demo, including all source code, is available for review.\n          <\/jats:p>","DOI":"10.1145\/3744245","type":"journal-article","created":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T07:34:07Z","timestamp":1749713647000},"page":"1-33","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Interactive Visual Performance Space Exploration of Operational Amplifiers with Differentiable Neural Network Surrogate Models"],"prefix":"10.1145","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6704-9640","authenticated-orcid":false,"given":"Yannick","family":"Uhlmann","sequence":"first","affiliation":[{"name":"Electronics & Drives, Reutlingen University","place":["Reutlingen, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-5328-9596","authenticated-orcid":false,"given":"Till","family":"Moldenhauer","sequence":"additional","affiliation":[{"name":"Electronics & Drives, Reutlingen University","place":["Reutlingen, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1565-3437","authenticated-orcid":false,"given":"Juergen","family":"Scheible","sequence":"additional","affiliation":[{"name":"Electronics & Drives, Reutlingen University","place":["Reutlingen, Germany"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2025,7,18]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/SMACD.2017.7981579"},{"key":"e_1_3_1_3_2","article-title":"The Practice of Analog IC Design","author":"Allen Phillip E.","year":"2004","unstructured":"Phillip E. 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