Keithley 6220

2 Output Connections
Output connectors ................................................................................................... 2-2
Triax connector ................................................................................................ 2-2
Ground points .................................................................................................. 2-3
LO and GUARD banana jacks ........................................................................ 2-3
INTERLOCK .................................................................................................. 2-4
Output configurations ............................................................................................. 2-5
Triax inner shield ............................................................................................. 2-7
Triax output low .............................................................................................. 2-7
Guards ..................................................................................................................... 2-8
Guard overview ............................................................................................... 2-8
Triax Cable Guard .......................................................................................... 2-9
Banana Jack Guard ........................................................................................ 2-12
Floating the current source ................................................................................... 2-13
Connections to DUT ............................................................................................. 2-15
Supplied triax cable ....................................................................................... 2-15
Basic connections .......................................................................................... 2-15
Shields and guarding ..................................................................................... 2-16
Banana Jack Guard connections .................................................................... 2-19
Floating current source connections .............................................................. 2-19
Using a test fixture ................................................................................................ 2-20
Custom-built test fixture ............................................................................... 2-20
3 DC Current Source Operation
Current source output capabilities .......................................................................... 3-2
Source ranges .................................................................................................. 3-2
Compliance ...................................................................................................... 3-3
Output power (source or sink) ......................................................................... 3-3
Output response .............................................................................................. 3-5
Setting source and compliance ............................................................................... 3-9
Source and compliance editing ....................................................................... 3-9
Autorange ...................................................................................................... 3-12
Source preset ................................................................................................. 3-12
Sourcing current ................................................................................................... 3-13
Remote programming – source output commands ........................................ 3-15
4 Sweeps
Overview ................................................................................................................ 4-2
Section overview ............................................................................................. 4-2
Sweep overview ............................................................................................... 4-2
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