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详细介绍
Keithley 精密直流和交流 + 直流低噪声电流源
6220 型直流电流源和 6221 型交流和直流电流源将易用性与极低的电流噪声相结合。 在测试环境中，从研发到生产，尤其是在半导体、纳米技术和超导体行业，低电流源对于应用至关重要。 6220 型和 6221 型具有高精度源和内置控制功能，非常适合使用增量模式、脉冲测量和微分电导测量的霍尔测量、电阻测量等应用。
特点 | 优势 |
| 10 14 Ω 输出阻抗 | 提供广泛的输出阻抗，确保负载中有稳定的电流源。 |
| 65000 点源内存 | 允许直接从电流源执行全面的测试电流扫描。 |
| 输出 0.1V 至 105V 的恒流电压，10mV 步长 | 防止潜在损坏对过电压敏感的设备。 |
| 源交流电源范围为 4pA 至 210mA 峰峰值 (6221) | 支持元器件和材料的交流检定。 |
| 10MHz 输出更新速率 (6221) | 生成高达 100kHz 的平滑正弦波。 |
| 内置标准和任意波形发生器，频率范围为 1mHz 至 100kHz (6221) | 支持用作复杂的可编程负载或传感器信号以及用于噪声模拟。 |
| 可编程脉冲宽度短至 5μs (6221) | 限制易损低功率元器件的功耗，与 2182A 型纳伏表配合使用时支持低至 50μs 的脉冲式 I-V 测量。 |
| 可重新配置的三同轴输出 | 简化匹配应用的防护要求的过程。 |
型号
| 型号 | 电流 | 电阻 | 扫描点数 | PC 接口 | 内部波形发生器 |
|---|---|---|---|---|---|
| 6220 | ± (100fA – 100mA) | 10nΩ 至 200MΩ（需要 2182A） | 65,536 (64k) | GPIB、RS-232 | - |
| 6221 | ± (100fA – 100mA) | 10nΩ 至 200MΩ（需要 2182A） | 65,536 (64k) | GPIB、RS-232、以太网 | 1mHz-100kHz，输出更新速率为 10 |
The type 6220 dc current source and type 6221 ac and dc current sources combine ease of use with extremely low current noise. In test environments, from research and development to production, especially in semiconductors, nanotechnology and superconductors, low current sources are critical to applications. The type 6220 and type 6221 have high precision source and built-in control functions and are very suitable for hall measurement and resistance measurement using incremental mode, pulse measurement and differential conductance measurement.
Main features and advantages
The source and resident current ranges from 100fA to 100mA
1014 Ω output impedance to ensure stable current source can provide all kinds of load
The source storage capacity of 65000 points can perform a comprehensive test current scan directly from the current source
Built-in rs-232, GPIB, trigger link and digital I/O interface
Configurable three-axis output interface for convenient application with protection function
Can simulate the early type 220 current source, no need to rewrite the program code for existing applications
The type 6220 dc current source and type 6221 ac/dc current source series are very easy to use precision micro current sources with very low noise. The generation of microcurrent is a key instrument in many research and development and product measurement applications, especially in semiconductors, nanotechnology and superconductivity. Fast, high precision, and the built-in control function, make 6220/6221 series be the ideal choice for the following applications, such as hall, Delta mode resistance measurement, pulse measurement, as well as the differential conductance measurement, etc.
application
nanotechnology
Differential conductance
Pulse source and resistance
Optoelectronic applications
Impulse type I - V
Ac bridge replacement device (used in conjunction with 2182A)
Low power resistance measurement
Locking amplifier replacement device (used in conjunction with 2182A)
Low noise resistance measurement
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