The Keithley 6220 DC Current Source combines ease of use with exceptionally low current noise. Low current sourcing is critical to applications in test environments ranging from R&D to production, especially in the semiconductor, nanotechnology and superconductor industries. High sourcing accuracy and built-in control functions make the 6220 ideal for applications like Hall measurements, resistance measurements using delta mode, pulsed measurements and differential conductance measurements.
Features:
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Source and sink (programmable load) 100fA to 100mA
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1014 ohms output impedance ensures stable current sourcing into variable loads
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65000-point source memory allows executing comprehensive test current sweeps directly from the current source
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Built-in RS-232, GPIB, Trigger Link, and digital I/O interfaces
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Reconfigurable triax output simplifies matching the application's guarding requirements
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Model 220 emulation mode eliminates need to reprogram existing applications
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Instrument control software available for both Macintosh and PC controllers
Applications:
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Nanotechnology
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Differential conductance
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Pulsed sourcing and resistance
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Optoelectronics
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Replacement for AC resistance bridges (when used with Model 2182A)
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Measuring resistance with low power
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Replacement for lock-in amplifiers (when used with Model 2182A)
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Measuring resistance with low noise