Constraint-Programmed Initial Sizing of Analog Operational Amplifiers
| Autor: | Maximilian Neuner, Inga Abel, Helmut Graeb |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Heuristic (computer science)
Computer science Heuristic Control engineering 02 engineering and technology Solver Network topology Sizing 020202 computer hardware & architecture law.invention Constraint (information theory) law 0202 electrical engineering electronic engineering information engineering Operational amplifier Constraint programming |
| Zdroj: | ICCD |
| DOI: | 10.1109/iccd46524.2019.00065 |
| Popis: | This paper presents a new method to automate the initial sizing of operational amplifiers. The method emulates the manual design procedure. The sizing task is formulated as a constraint programming problem. Two new algorithms are introduced: First, a hierarchical structural analysis of functional blocks that automatically sets up the analytical equations for the sizing. And second, a heuristic to guide branching process of a constraint programming solver. We achieve a reproduction of the manual proceeding of designers and at the same time an automation of the set-up of the design problem, reducing the set-up effort from months to seconds. 16 topologies, including different variants of two-stage, folded-cascode, telescopic and symmetrical op-amps, are considered at this time. In this paper, experimental results for a two-stage op-amp and a folded-cascode op-amp are presented to show the effectiveness of the approach. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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