6221 - 

DC Current Source AC and DC Current Source
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.

The need for precision, low current sourcing. 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. Lower stimulus currents produce lower—and 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.

Features:

Source and sink (programmable load) 100fA to 100mA

1014W output impedance ensures stable current sourcing into variable loads

65000-point source memory allows executing comprehensive test current sweeps directly from the current source

Built-in RS -232, GPIB, Trigger Link, and digital I/O interfaces

Reconfigurable triax output simplifies matching the application’s guarding requirements

Model 220 emulation mode eliminates need to reprogram existing applications

Source AC currents from 4pA to 210mA peak to peak for AC characterization of components and materials. The 6221’s 10MHz output update rate generates smooth sine waves up to 100kHz

Built-in standard and arbitrary waveform generators with 1mHz to 100kHz frequency range. Applications include use as a complex programmable load or sensor signal and for noise emulation

Programmable pulse widths as short as 5μs, limiting power dissipation in delicate components. Supports pulsed I-V measurements down to 50μs when used with Model 2182A Nanovoltmeter

Built-in Ethernet interface for easy remote control without a GPIB controller card