Many older linear devices, especially operational amplifiers (op amps) do not have a SPICE macro model. Even when they do, older models typically use a Boyle macro model which, by today’s standards, ...

Every Tuesday, Shifting Perspectives explores issues affecting druids and those who group with them, brought to you by David Bowers and Dan O'Halloran. Macros used to be a very mysterious thing, ...

Designers need macro models that can precisely and accurately predict the behavior of an actual device. Spice macro models have continued to evolve over the past decade, and new models allow users to ...

Many designers have asked why CPF has the macro model commands while UPF/1801 does not. I will try to answer this question and explain the differences in both approaches. First, let’s briefly review ...