BALLISTIC: An Analog Layout Language





Synopsis

Mentor Graphics' layout ensemble is being used in a co-operative industrial research program to develop software for automated analog integrated circuit layout. Contributors to the project include government agencies, industrial collaborators, and researchers at the University of Toronto, with Professor Kenneth Martin as the pricipal investigator.

A simple yet powerful layout language, BALLISTIC, has been created: high-level layout code can be written for designing automated opamp generators, standard cell layout generators, and other analog integrated circuits. The goal is to use BALLISTIC to generate fully-parameterized analog filters, switched-capacitor filters, and data convertors.

For example, the small amplifier layout pictured below could take several hours or days to create by hand for an inexperienced designer, but code written in the BALLISTIC language can be used to generate this simple circuit in under one minute - and it is fully-parameterized and technology-independant, hence it is re-usable. Also, the source code for this layout can be readily modified because of its legibility.

Additionally, a front-end graphical spreadsheet package has been developed to design high-level modules like this amplifier. The software, called PowerDesign, accepts electrical specifications such as power consumption and generates the BALLISTIC code necessary to lay out the design.




For additional documentation and more links ...

To see some examples of BALLISTIC generated layouts ...

For a look at some layout building-blocks ...

To download the BALLISTIC software ...



Comments and Email

A mail alias has been set up for handling questions and comments regarding the BALLISTIC layout language, analog layout issues, the parameterized object library, and GDT software in general. You may obtain more information regarding the software, or personal instructions for FTP access (for non-profit organizations), by sending email to the following ...

Email: gdt@eecg.toronto.edu

Thank-you for your interest in BALLISTIC. Please continue to visit these pages to see updates and new information.




Web pages by Bryn R. Owen