Method for reusing design resources of operational amplifier, layout creating apparatus and layout creating program

摘要

Three kinds of shrink factors, 1 time, 0.5 time, and 0.25 time, are prepared and three sets of operational amplifier layout information are also prepared as a library in correspondence with the three kinds of shrink factors. At each shrink factor, the bias voltage is varied between upper and lower limits to vary the bias current.