Former EDN analog editor Bill Schweber has published a good article from Tamara Schmitz and Jian Wong about developing Spice macromodels for voltage-feedback op-amps. Part 1 (pdf), and part 2 (pdf).

Part 5 provides spec summary of the GP/R K2-W vacuum-tube op amp and discusses measurement constraints/conditions and LTspice modeled output. The K2-W vacuum-tube op ...

Previously on “Yet More…” – OK, that joke is wearing a bit thin. By the end of part 3 we had just got to the point of seeing that when we apply a current excitation to our modelled power supplies, the ...

Last time, I teased you about the dark side of op-amp supply current, especially when we’re talking about negative supply pins and how the Single Supply Gang are going around connecting all those pins ...