February 22, 2017

A Computer-Aided Design and Synthesis Environment for Analog by Geert Van der Plas

By Geert Van der Plas

In the 1st half the AMGIE analog synthesis procedure is defined. AMGIE is the 1st analog synthesis method that automates the complete layout technique from necessities all the way down to confirmed structure. it truly is specified to the layout of moderate-complexity circuits. It depends upon layout and circuit wisdom saved within the tool's libraries and will be utilized by either beginner and skilled analog designers in addition to system-level designers. the interior workings are defined intimately, with (practical) examples to illustrate how the carried out algorithms and strategies paintings. Experimental effects acquired with the AMGIE method are pronounced, together with real fabricated and measured circuits.

The moment procedure, i.e. the systematic layout of high-performance analog circuits, is mentioned within the moment a part of the booklet. This procedure is supported by way of instruments to spice up the productiveness of the dressmaker. An instance of one of these device is Mondriaan, that's certain in the direction of the automated format new release of hugely normal analog blocks. The proposed systematic layout method is then utilized to the layout of high-accuracy current-steering electronic to analog converters (DACs). the whole layout course is mentioned intimately.

Both complementary ways elevate analog layout productiveness. layout occasions of the various layout experiments undertaken are said in the course of the ebook to illustrate this.

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Extra info for A Computer-Aided Design and Synthesis Environment for Analog Integrated Circuits

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Design Flow Panel at the bottom, which allows the designer to execute the different tools in the order imposed by the design flow described above. The design flow panel is a graphical representation of the abstract design flow embedded in the Design Controller. It indicates through a traffic light coloring scheme (red — green) which design steps have already been executed successfully, and the next step can only be executed when the previous step has been terminated successfully. 4. a message window for warnings and messages at the very bottom and reporting the progress of the synthesis run.

7(c)), where topology selection is performed first for every low-level cell, then sizing and optimization, etc. This approach is the most efficient (for detecting and correcting design failures) and therefore has been implemented in the AMGIE system. The above design flow has been encoded in a software module called the Design Controller (DC). This module is the central “brain” of the AMGIE system and controls the execution of every synthesis run, according to the embedded design flow. The next step in the design flow can only be executed if the previous step has been terminated successfully.

This can be a novice analog designer, a system-level or digital designer. This designer is on average not capable of manually designing an analog circuit to a specified performance. 8, and relies on the knowledge stored in the libraries. He/she is in full control of the design process through the user interface and leaves the point tools of the AMGIE system solve all design problems (topology selection, sizing, verification and layout generation). An experienced analog designer can also use the AMGIE system in this mode: (s)he wants a low-challenge analog design solved quickly in this case.

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