Keithley 6517A
Electrometer
Description
<
p>This Electrometer has a special low current input amplifier with an input bias current of <3fA with just 0.75fApp (peak to peak) noise and <20µV burden voltage on the lowest range.
The input impedance for voltage and resistance measurements is 200TΩ for near ideal circuit loading.
These specifications ensure the accuracy and sensitivity needed for accurate low current and high impedance voltage, resistance, and charge measurements in areas of research such as physics, optics, nanotechnology, and materials science.
A built in ±1kV voltage source with sweep capability simplifies performing leakage, breakdown, and resistance testing, as well as volume (Ω- cm) and surface resistivity (Ω/square) measurements on insulating materials.
Key Points
200TΩ input impedance
<
p><3fA bias current
Up to 125rdgs/s
0.75fApp noise
Built in ±1kV voltage source
Unique voltage reversal method for high resistance measurements
Optional plug in scanner cards
Specifications
DC current: 200pA to 20mA
DC voltage range: 2V to 200V
Frequency range: 0Hz to 60Hz
Number of digits: 5.5
Resistance range: 2Mohms to 200Tohms