BUILD ACCURATE SPICE MODELS FOR LOW-NOISE,LOW-POWER PRECISION AMPLIFIERS

摘要

System engineers require accurate models for all types of ICs, and they require Spice models to run comprehensive circuit simulations. Early Spice models had few nonlinear elements, mini' mizing simulation time at the cost of accuracy, but new methods let you increase the number of nonlinear elements and improve accuracy. You can create a multistage model for low-noise, low-power operational amplifiers. The model employs work from Analog Devices (Reference 1) and requires several architectural changes to model a low-noise, low-power precision amplifier.