MODELLING AND SIMULATION OF GaAs HIGH-SPEED HBT, MESFET, AND HEMT ANALOGUE/DIGITAL CIRCUITS

Zhou Xing and Tang Tianwen

School of Electrical & Electronic Engineering
Nanyang Technological University


Proc. of the 7th MINDEF-NTU Joint R&D Seminar

Nanyang Technological University, Singapore, January 12, 1996, pp. 77-83.


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Abstract

GaAs high-speed device models based on the AIM-Spice Universal Model are implemented in a single-engine mixed-signal multi-level circuit simulator. The simulator can be used to analyse HBT, MESFET, and HEMT circuits, in addition to conventional silicon BJT/MOS circuits, and to predict the performance of MMIC's. Mixed analogue/digital circuits can be freely mixed and simulated at different levels with the desired accuracy. The dynamic delay model for the logic gates provides great speed advantage for simulating large GaAs digital circuits with "near analogue" accuracy..


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