HP 4140B pA Meter / DC Voltage Source

This is an HP 4140B pA Meter/Voltage Source. – Consists of an extremely stable picoampere meter and 2 programmable DC voltage sources, one of which operates as a ramp and staircase generator as well as a DC source. – 3 basic semiconductor measurements: I, I-V and quasi-static C-V. – Basic accuracy: 0.5 percent. – High resolution: 0.001 x 10-12.