Product overview The SourceMeter combines a precise, low-noise, highly stable DC power supply with a lownoise, highly repeatable, high-impedance multimeter and a remote preamplifier for ultra low current measurements. It has 0.012% basic accuracy with 5 1⁄2-digit resolution. At 5 1⁄2 digits, the SourceMeter delivers 520 readings/second over the IEEE-488 bus. At 4 1⁄2 digits, it can read up to 2000 readings/second into its internal buffer. The unit has broad source and measurement ranges: Source voltage from 5μV to 210V; measure voltage from 1μV to 211V. Source current from 0.5fA to 105mA; measure current from 10aA to 105.5mA. Measure resistance from 100μΩ (<100μΩ in manual ohms) to 21.1TΩ. Maximum source power is 2.2W. NOTE The Model 6430 is Y2K compliant. Some additional capabilities of the SourceMeter include: Perform measurements at the DUT using the small Remote PreAmp. 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 1000 points, memory sweep of up to 100 instrument setups). 6-wire ohms measurement with programmable I-source or V-source with V or I clamp. 2.2W, 4-quadrant source and sink operation. Up to 11 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 — 5 built-in, up to 5 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.