AMSnet-q: Unsupervised Circuit Identification and Performance Labeling for AMS Circuits

TL;DR

AMSnet-q is an automated, unsupervised pipeline that converts schematic images into a labeled AMS circuit database, removing the need for manual annotation and enabling scalable circuit data generation.

Contribution

It introduces a fully automated framework that performs schematic-to-netlist conversion, topology-aware testbench generation, and validation, eliminating human effort in dataset creation.

Findings

Processed 739 schematics from AMSnet 1.0 dataset.

Constructed a database with 4 circuit classes, 105 topologies, and 89,789 device configurations.

Validated in 28 nm technology, demonstrating scalability and automation.

Abstract

Analog and mixed-signal (AMS) circuit design remains heavily reliant on expert knowledge. While recent AI-driven automation tools can generate candidate topologies, they critically depend on manually curated datasets with functional and performance annotations -- a requirement that current large language models (LLMs) and vision models cannot automate. Existing approaches still require domain experts to manually interpret circuit functionality. We present AMSnet-q, a fully automated, unsupervised pipeline that eliminates human-in-the-loop annotation by converting schematic images directly into a labeled AMS circuit database. Unlike prior work that stops at netlist extraction, our framework automates the complete verification loop: it performs schematic-to-netlist conversion, topology-aware testbench generation, and simulation-based sizing validation to objectively determine circuit functionality. Validated in 28 nm technology, AMSnet-q processed 739 schematics from the AMSnet 1.0 dataset, automatically constructing a repository of 4 circuit classes, 105 distinct topologies, and 89,789 labeled device configurations. By decoupling human effort from dataset volume and reducing the workload to a one-time testbench template per circuit class, AMSnet-q enables scalable, objective, and fully automated AMS database construction.