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| Features |
Benefits |
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Precision low current sourcing
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Device testing and characterization for today's very small and power-efficient electronics requires sourcing low current levels, which demands the use of a precision, low current source
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Delta mode measurement capability
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Delta mode reduces noise by nearly a factor of 2 and reduces the effects of thermoelectric voltages by a factor of 10; coordinates measurements with the Keithley Model 2182A Nanovoltmeter
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Differential conductance measurement capability
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Combined with the Keithley Model 2182A Nanovoltmeter, a user has the ability to make differential conductance measurements, providing 10x the speed and significantly lower noise than other options; data can be obtained in a single measurement pass, rather than by averaging the result of multiple sweeps, which is both time-consuming and prone to error
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Sweep and waveform output
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Ability to create linear, logarithmic, and custom low current sweeps; the Model 6221 can output both standard (sine, square, ramp, triangle) and arbitrary AC current waveforms
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AC current sourcing (6221)
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For applications that require low level AC current, the Model 6221 offers fully programmable frequency, amplitude, and duty cycle parameters
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Pulsed current sourcing (6221)
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The Model 6221's pulse measurement capability minimizes the amount of power dissipated into a DUT by offering maximum flexibility when making pulsed measurements, allowing users to program the optimal pulse current amplitude, pulse interval, pulse width, and other pulse parameters
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Key specifications and ordering information
| Model |
Current |
Resistance |
Sweep Points |
PC Interface |
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6221
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100fA - 100mA
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10nΩ to 200MΩ
(requires 2182A)
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64,000
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GPIB, RS-232, Ethernet
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6220
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100fA - 100mA
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10nΩ to 200MΩ
(requires 2182A)
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64,000
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GPIB, RS-232
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| Standard Accessories |
2107-4 Low Thermal Input Cable with spade lugs, 1.2m (4 ft). User manual, service
manual, contact cleaner,
line cord, alligator
clips.
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| Other Accessories |
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Cable
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237-ALG-2
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Low Noise Triax Cable, 3-slot triax to alligator clips
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| 7007-1
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Shielded IEEE-488 Cable, 1m (3.2 ft)
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| 7007-2
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Shielded IEEE-488 Cable, 2m (6.5 ft)
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| 7007-4
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Shielded IEEE-488 Cable, 4m (13.1 ft)
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7009-5
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RS-232 Cable
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| 7078-TRX-3
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Low Noise Triax Cable, 3-Slot Triax Connectors, 0.9m (3 ft)
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7078-TRX-5
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Low Noise Triax Cable, 3-Slot Triax Connectors, 1.5m (5 ft)
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| 7078-TRX-10
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Low Noise Triax Cable, 3-Slot Triax Connectors, 3m (10 ft)
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| 7078-TRX-20
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Low Noise Triax Cable, 3-Slot Triax Connectors, 6m (20 ft)
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8501-x
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Trigger Link Cable with male Micro-DIN
connectors at each end, 1m or 2m (3.3 ft or 6.6 ft)
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Rack Mount Kits
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4288-1
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Single Fixed Rack Mounting Kit
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4288-2
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Dual Fixed Rack Mounting Kit
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GPIB Interfaces
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KPCI-488LPA
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IEEE-488 Interface/Controller
for the PCI Bus
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KUSB-488B
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IEEE-488 USB-to-GPIB Interface Adapter
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