1-2 Getting Started Model 6220/6221 User’s Manual
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Introduction
User’s Manual content and structure
This User’s Manual is provided as a hardcopy and is also provided on the sup-
plied Product Information CD in PDF format. The User’s Manual is an abbreviated
version of the operation sections of the Reference Manual. The seven sections of
the User’s Manual correspond (in abbreviated form) to the first seven sections of
the Reference Manual.
The Reference Manual is on the Product Information CD in PDF format. Refer to
the Reference Manual for complete information.
Capabilities and features
• Source ±DC current from 0.1pA to 105mA.
• Voltage compliance limit from 0.1V to 105V in 10mV steps.
• 11W, four-quadrant sink or source operation (duty cycle limitation for high
power sink).
• Analog filter to slow down output response.
• Triax cable guarding to optimize output response speed and reduce leak-
age currents in high impedance test circuits.
• Banana jack guard output for voltage measurements.
• Sweep functions: linear staircase, logarithmic staircase, and custom.
• Waveform functions (6221 only): Sine, square, ramp, and arbitrary function
generator.
• Five user-saved setups.
• Delta testing when used with the Keithley Model 2182 or 2182A:
• Delta – Uses a square wave output and a 3-point measurement algo-
rithm to cancel the effects of thermal EMFs.
• Pulse Delta (6221 and 2182A only) – Provides a pulse output and a
3-point (or 2-point) measurement algorithm for testing of temperature
sensitive Device Under Test (DUT).
• Differential Conductance – Uses a differential current output and a
3-point moving average algorithm to perform differential measure-
ments.
• Buffer storage and recall for up to 65,536 delta readings
• Averaging filtering for delta readings
• Supported remote interfaces: Model 6220: GPIB and RS-232.
Model 6221: GPIB, RS-232, and Ethernet.
• KI-220 language – DDC commands to emulate Model 220 operation.
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