Picoamps at kilohertz anybody? I spent a good chunk of my career working for a major automatic test equipment (ATE) manufacturer, mostly designing and testing analog instrumentation. One module found on most cards in an ATE system is a parametric measurement unit (PMU), which measures DC parameters – voltage or current – on a pin of a device under test (DUT) in response to the complementary stimulus – current or voltage.  Because time = cost during IC testing, as in so many industrial arenas, “DC” must be taken with a grain of salt.  These measurements are the slowest single measurements made on a pin, so there is always pressure from the market to make them as fast as possible. Still, a few milliseconds is not uncommon. On the other hand, … Read More +