The new AU4550 Pulsed IV/RF Instrument provides unequalled test accuracy, compact design, and inexpensive options and modular hardware that allow easy, inexpensive upgrading. Pulsed heads set closer to the device-under-test and narrow range pulse heads improve accuracy while a synthetic instrument core eliminates hardware redundancies, reducing the footprint by half, even when fully optioned. The AU4550’s interchangeable pulser heads and LXI-compliancy allow adaptability to scale pulsed IV to pulsed IV/RF while meeting changing industry standards.