Patent ID: 7403030

Claim:
An apparatus for applying power to a device under test, comprising: plural parametric measurement units, the plural parametric measurement units comprising substantially same circuitry, each of the plural parametric measurement units being configurable to operate as a current source to power the device under test or as a sensing device, the plural parametric measurement units comprising: a first parametric measurement unit configured to sense a voltage at the device, the first parametric measurement unit comprising a sense path that taps a voltage at a power pin of the device under test; and at least two additional parametric measurement units configured to operate as a current source, the at least two additional parametric measurement units being operable in a first mode to provide regulated output current and in a second mode to provide regulated output voltage, the at least two additional parametric measurement units for receiving voltage via the first parametric measurement unit and for providing output current to the power pin of the device under test, the output current being provided based on the voltage received via the first parametric measurement unit.