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Analog IC Design Automation

Using analog synthesis and parametric optimization to reduce design time


IP Modules Generators

Application of analog synthesis techniques
to a particular class of circuits.
Module generators


Parametrizable analog block library design

Parametrizable analog block library design (amplifiers, differential pairs, current mirrors, etc.)


IP-Q Verification

IP Automated Verification and Characterization System - IP-Q
Analog IC Design Automation

   In mixed-signal integrated circuits, the analog part of the design often occupies a small portion of the physical die area but requires a disproportionately large amount of the design effort and time.
   Todays analog circuit designers often use a combination of hand analysis and circuit simulation that was widely available in 1980. There has been some improvement in efficiency and capability since that time, thanks to the development of improved user interfaces for software tools, and new capabilities for behavioral, high level, and mixed signal simulation, but the task of circuit design is still reserved for experience circuit designers using manual design and layout.
   The general goal of Analog Computer Aided Design (ACAD) is to reduce the manual design and layout time required for circuit design. Improving analytic tools is a first step, and creating inhouse cell libraries from previous designs is a low tech way to speed circuit development through design re-use, but more aggressive techniques which result in design information reuse and automated design synthesis offer greater promise for reducing design time. These ACAD approaches include analog standard cell libraries and analog synthesis approaches such as circuit synthesis, layout synthesis, and module generation, and hierarchical design synthesis. For now, some working definitions of these terms are needed. Analog standard cell approaches consist of a library of well characterized circuit blocks, which the designer assembles into a full analog sub-system. In general analog synthesis, an input specification is used to drive a process which creates elements for meeting the design specification. In circuit synthesis a set of circuit specifications are used to drive a synthesis process which sizes the circuit elements and devices. In layout synthesis an analog circuit netlist, including additional information about parasitics, matching, and performance constraints, creates an appropriate layout.

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