Product overview The SourceMeter combines a precise, low-noise, highly stable DC power supply with a low-noise, highly repeatable, high-impedance multimeter. It has 0.012% basic accuracy with 51⁄2-digit resolution. At 51⁄2 digits, the SourceMeter delivers 520 readings/second over the IEEE-488 bus. At 41⁄2 digits, it can read up to 2000 readings/second into its inter- nal buffer. The unit has broad source and measurement ranges: Model 2400: • Source voltage from 5μV to 210V; measure voltage from 1μV to 211V. • Source current from 50pA to 1.05A; measure current from 10pA to 1.055A. • Measure resistance from 100μΩ (<100μΩ in manual ohms) to 211MΩ. • Maximum source power is 22W. Model 2410: • Source voltage from 5μV to 1100V; measure voltage from 1μV to 1100V. • Source current from 50pA to 1.05A; measure current from 10pA to 1.055A. • Measure resistance from 100μΩ (<100μΩ in manual ohms) to 211MΩ. • Maximum source power is 22W. Model 2420: • Source voltage from 5μV to 63V; measure voltage from 1μV to 63.3V. • Source current from 500pA to 3.15A; measure current from 100pA to 3.165A. • Measure resistance from 10μΩ (<10μΩ in manual ohms) to 21.1MΩ. • Maximum source power is 66W. Models 2425 and 2430: • Source DC or pulse voltage from 5μV to 105V; measure voltage from 1μV to 105.5V. • Source DC current from 500pA to 3.15A; measure DC current from 100pA to 3.165A. • Source pulse current from 500pA to 10.5A; measure pulse current from 100pA to 10.55A. (Model 2430 only.) • Measure resistance from 10μΩ (<10μΩ in manual ohms) to 21.1MΩ. • Maximum DC source power is 110W. • Maximum pulse source power is 1.1kW. (Model 2430 only.) Model 2440: • Source voltage from 5μV to 42V; measure voltage from 1μV to 42V. • Source current from 500pA to 5.25A; measure current from 100pA to 5.25A. • Measure resistance from 10μΩ (<10μΩ in manual ohms) to 21.1MΩ. • Maximum source power is 66W. NOTESThe Models 2400, 2410, 2420, 2425, 2430, and 2440 are Y2K compliant. Models with a “-C” suffix have the Contact Check option. See Appendix F. Some additional capabilities of the SourceMeter include: Concurrent measurements of all three functions over the remote interface. Source-measure sweep capabilities (linear and logarithmic staircase sweeps, source sweep list of up to 2500 points, memory sweep of up to 100 instrument setups). 6-wire Ω measurement with programmable I-source or V-source with V or I clamp. 4-quadrant source and sink operation. Up to 12 stages of limit testing with a built-in comparator for pass/fail testing. Digital I/O for stand-alone binning operations or interface to component handler. Programming language and remote interfaces — The SourceMeter uses the SCPI programming language and two remote interface ports (IEEE-488/GPIB and RS-232C). Trigger-Link interface to Keithley Series 7000 switching hardware. Math expressions — Five built-in, up to five user-defined (bus only). Reading and setup storage — Up to 2500 readings and seven setups (five user defaults, factory default, *RST default) can be stored and recalled. Closed-cover calibration — The instrument can be calibrated either from the front panel or remote interface.