Keithley 6221 AC and DC Current Source, 100 fA to 100 mA, GPIB, RS-232, Ethernet

Keithley 6221 AC and DC Current Source, 100 fA to 100 mA, GPIB, RS-232, Ethernet

The 6221 AC and 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 6221 ideal for applications such as Hall measurements, resistance measurements in delta mode, pulsed measurements, and differential conductance measurements.

Device testing and characterization for today’s very small and power-efficient electronics require sourcing low current levels, which demands a precision, low-current source. Lower stimulus currents produce lower, and harder-to-measure, voltages across the device. Combining the Model 6221 with a Model 2182A Nanovoltmeter makes it possible to address both of these challenges . AC current source and current source waveform generator. The Model 6221 is the only low-current AC source on the market. Before its introduction, researchers and engineers were forced to build their own AC current sources. This cost-effective source provides better accuracy, consistency, reliability, and robustness than “home-made” solutions. The Model 6221 is also the only commercially available current source waveform generator, which greatly simplifies creating and outputting complex waveforms 

Features:

• Current Range: ±100 fA to 100 mA
• Resistance: 10 nΩ to 200 MΩ (requires 2182A)
  
• 1014 W output impedance ensures stable current sourcing into variable loads
• Source AC currents from 4 pA to 210 mA peak-to-peak for AC characterization of components and materials.
• Built-in standard and arbitrary waveform generators with a 1 mHz to 100 kHz frequency range with 10 M samples/s output update rate.
• Programmable pulse widths as short as 5µs, limiting power dissipation in delicate components. supports pulsed I-V measurements down to 50 µs when used with Model 2182a Nanovoltmeter
• 65000-point source memory allows executing comprehensive test current sweeps directly from the current source
• Reconfigurable triax output simplifies matching the application’s guarding requirements
• Model 220 emulation mode eliminates the need to reprogram existing applications
• Built-in Ethernet, RS-232, GPIB, Trigger link, and digital I/O interfaces
• Operating Voltage: 100 Vac to 240 Vac rms, 50 to 60 Hz (automatically detected at power up).
• Dimensions: 89 mm (H) x 213 mm (W) x 370 mm (D), Weight: 4.1 kg (9 lbs.)

Please see the Datasheet for complete details and specifications.