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AmpAgent: An LLM-based Multi-Agent System for Multi-stage Amplifier Schematic Design from Literature for Process and Performance Porting

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arxiv 2409.14739 v1 pith:Z6F3OWWI submitted 2024-09-23 cs.ET cs.SYeess.SY

classification cs.ETcs.SYeess.SY
keywords designampagentliteraturecircuitperformancetimesagentamplifiers
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Multi-stage amplifiers are widely applied in analog circuits. However, their large number of components, complex transfer functions, and intricate pole-zero distributions necessitate extensive manpower for derivation and param sizing to ensure their stability. In order to achieve efficient derivation of the transfer function and simplify the difficulty of circuit design, we propose AmpAgent: a multi-agent system based on large language models (LLMs) for efficiently designing such complex amplifiers from literature with process and performance porting. AmpAgent is composed of three agents: Literature Analysis Agent, Mathematics Reasoning Agent and Device Sizing Agent. They are separately responsible for retrieving key information (e.g. formulas and transfer functions) from the literature, decompose the whole circuit's design problem by deriving the key formulas, and address the decomposed problem iteratively. AmpAgent was employed in the schematic design of seven types of multi-stage amplifiers with different compensation techniques. In terms of design efficiency, AmpAgent has reduced the number of iterations by 1.32$ \sim $4${\times}$ and execution time by 1.19$ \sim $2.99${\times}$ compared to conventional optimization algorithms, with a success rate increased by 1.03$ \sim $6.79${\times}$. In terms of circuit performance, it has improved by 1.63$ \sim $27.25${\times}$ compared to the original literature. The findings suggest that LLMs could play a crucial role in the field of complex analog circuit schematic design, as well as process and performance porting.

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Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. DiffCkt: A Diffusion Model-Based Hybrid Neural Network Framework for Automatic Transistor-Level Generation of Analog Circuits

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    DiffCkt uses three diffusion networks to predict amplifier component counts, topology, and transistor sizes from performance specifications, and reports 2.21x to 8365x higher generation efficiency than prior analog EDA tools.

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    NEMESIS generates SPICE-verified OTA performance equations from netlist plus schematic via multimodal LLM generation, RAG, and iterative SPICE repair, with <7% average error and ~4622× post-convergence speedup on five...

  3. RF-Agent: A Practical Framework for Building Language Agents for RFIC Design

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    A multi-agent LLM pipeline distills seven RF textbooks into an 11k-sample QTSA dataset and benchmark, with SFT and RAG experiments showing accuracy gains on that benchmark.

  4. MMCircuitEval: A Comprehensive Multimodal Circuit-Focused Benchmark for Evaluating LLMs

    cs.LG 2025-07 conditional novelty 6.0 of 10

    A new multimodal benchmark of 3,614 circuit QA pairs shows that large language models perform worst on back-end layout and computation tasks, and that current models generally underperform on circuit design questions.

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    MenTeR is a multi-agent LLM system that claims to automate RF/analog circuit netlist design, achieving 84.2% Pass@1 on a 24-task benchmark, but its self-generated testbench validation is shown to sometimes certify inc...

  6. Towards Reliable AI-Assisted Analog Design: Template-Constrained LLM Agents for SAR ADC Generation

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  7. Can an Actor-Critic Optimization Framework Improve Analog Design?

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