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Macromodelling of differential drivers

The development of macromodels of differential drivers for the prediction of the analogue operation of very high-speed digital communication links is explored. The macromodels are mathematical relations hiding the information on the internal structure of devices; they are estimated from port device responses and can be easily implemented in any circuit or analogue mixed-signal simulator as SPICE-like subcircuits or VHDL-AMS code descriptions. Accuracy and efficiency are assessed by applying the modelling procedure to actual devices.