6430亞fA程控源表集合了Keithley源表產(chǎn)品和源測量單元(SMU)的電壓電流源及測量功能，比靜電計靈敏度更高，噪聲更低，輸入阻抗更高。這種的性能是通過6430遠端前置放大器實現(xiàn)的，它提供非常靈敏的雙向放大器，用于測量或產(chǎn)生被測試器件的電流。遠端前置放大器輸出的高層信號通過一條兩米長的線纜發(fā)送到控制主機上。這使得用戶可以直接，或者近距離連接該信號，減少線纜噪聲的影響。

?0.4fA p - p(4E - 16A) 噪聲
遠端前置放大器可以位于信號源處，放大后傳輸以減少噪聲
輸入阻抗>1016Ω
高速-可達2000讀數(shù)/秒
6 1/2位分辨率
快速元器件特性測度，帶可編程數(shù)字式 I/O 接口

The 6430 sub-fA programmable source meter gathers the voltage and current sources and measurement functions of Keithley source meter products and source measurement units, which has higher sensitivity, lower noise and higher input impedance than the electrometer. This unique performance is achieved through the 6430 remote preamplifier, which provides a very sensitive bidirectional amplifier for measuring or generating the current of the device under test. The high-level signal from the remote preamplifier is transmitted to the control host through a two-meter-long cable. This allows the user to connect the signal directly, or at close range, to reduce cable noise.

0.4fA p PU 4e 16A) noise;

The remote preamplifier can be located at the signal source and transmitted after amplification to reduce noise.

Input impedance > 1016 Ω;

High speed-up to 2000 readings per second;

61 / 2 bit resolution; Fast component characteristic Measurement with Programmable Digital I / O Interface