ADOPT-a CAD tool for analog circuit design

The structure and use of the ADOPT (Analog Design via Optimization) system are described. The ADOPT system consists of the circuit-simulation program SPICE, the nonlinear optimization program SUXES (Stanford University extractor of model parameters), and an interface subroutine called OPTLINK to link the two programs. The design of a third-order low-pass filter made up of seven transconductance elements is given as an example.<<ETX>>