Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Keithley 6221
Keithley 6221 AC + DC Current Source with 10 MSPS sample rate
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic Ground Shipping
✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Keithley 6221 AC + DC Current Source
The Keithley 6221 is an AC and DC Current Source designed to generate up to 100 kHz smooth sine waves with the help of its 10MHz output update rate. This model comes with an integrated arbitrary and standard waveform generator within a frequency range of 1 mHz to 100 kHz frequency. In addition, the Keithley 6221 can offer as short as 5µs programmable pulse widths and also supports down to 50µs pulse I-V measurements. This Current Source is fully programmable via its front panel controls. However, for external controlling it comes equipped with multiple communication interfaces, which includes: RS-232, GPIB, and Ethernet.
As an arbitrary function generator, the Keithley 6221 can generate ramp, square, sine, and four user-defined arbitrary waveforms. This model is one of the very few low current AC sources available on the market. This cost-effective source offers sourcing of currents (AC) from 4pA to 210mA. The output voltage compliance of this source can be adjusted from 0.1V to 105V in steps of 10mV. Remember, the voltage compliance is critical where overvoltage could damage the circuitry or the device under test (DUT).
The Keithley 6221 AC + DC Current Source is considered one of the most viable means for differential conductance measurements when it is used in conjunction with the 2182A Nanovoltmeter. This model offers 1014Ω output impedance and provides stable current to variable loads. It has a 65000-point source memory as well, which allows the direct execution of current sweeps from the instrument.
| Model | Keithley 6221 |
|---|---|
| Manufacturer | Keithley |
| Type | AC + DC Current Source |
| Frequency Range | 1 mHz to 100 kHz |
| Sample Rate | 10 MSPS |
| Remote Interfaces | IEEE-488 and RS-232C |
| Output Capacitance | <10pF, <100pF Filter ON(2nA/20nA range) |
| 6221 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for Keithley 6221:
Delivery:
Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
Payment:
Receive Price & Availability Today!
Ask About Our Tiered Calibration Levels
Option & Modules:
Confirm Your Requirements or Versions
Cost & Lead Time Available Upon Request for Service
Repair Evaluation: $150
Common Typos:
Why Buy From Apex Waves:
