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Keithley 6221 AC/DC Current Source

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The Keithley 6221 is available to buy refurbished used or rent, usually from our UK stock.


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£165 (4 Week Rate)

Rate varies with config & rental period. Please contact us for the best rental rate

Free UK Delivery
Free UK Mainland Delivery (Sales)

Manuals and Accessories
Manuals and accessories supplied

Full Warranty
Comprehensive Warranty on ALL Products

ISO9001:2008 Certified
UK Certified Quality Assurance

Keithley 6221 datasheet

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Keithley 6221 AC/DC Current Source Description:

The Model 6220 DC Current Source and Model 6221 AC and DC Current Source combine 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 Models 6220 and 6221 ideal for applications like Hall measurements, resistance measurements using delta mode, pulsed measurements, and differential conductance measurements.

Device testing and characterization for todays very small and power-efficient electronics requires sourcing low current levels, which demands the use of a precision, low current source. Lower stimulus currents produce lowerand harder to measure voltages across the device. Combining the Model 6220 or 6221 with a Model 2182A Nanovoltmeter makes it possible to address both of these challenges.

The Model 6221 is the only AC current 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.

Both current sources are fully programmable via the front panel controls or from an external controller via RS-232 or GPIB interfaces; the Model 6221 also features an Ethernet interface for remote control from anywhere theres an Ethernet connection. Both instruments can source DC currents from 100fA to 105mA; the Model 6221 can also source AC currents from 1pA to 100mA. The output voltage compliance of either source can be set from 0.1V to 105V in 10mV steps. Voltage compliance (which limits the amount of voltage applied when sourcing a current) is critical for applications in which overvoltages could damage the device under test (DUT).

These instruments build upon Keithleys popular Model 220 Programmable Current Source; a Model 220 emulation mode makes it easy to replace a Model 220 with a Model 6220/6221 in an existing application without rewriting the control code.

We offer the refurbished used Keithley 6221 AC/DC Current Source for sale and rental.

The Keithley 6221 is fully tested and refurbished in our in-house ISO9001 calibration laboratory. We supply manuals, accessories, full warranty and a free-of-charge Certificate of Conformity. We can also provide the Keithley 6221 with a fresh calibration for a small additional charge.

If you have under-utilised test equipment talk to us about trading-in or part-exchanging it towards the Keithley 6221 or other refurbished test equipment.

Last Updated: 27-Nov-2018