2-14 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 2: DUT Test Connections Series 2600A System SourceMeter® Instruments Reference Manual
Figure 2-19
Model 2636A High-impedance guarding (non-floating)
Noise shield
A noise shield (see Figure 2-20) is used to prevent unwanted signals from being induced into the
test circuit. Low-level signals may benefit from effective shielding. The metal noise shield
surrounds the test circuit and should be connected to SMU LO as shown in
Figure 2-20.
Figure 2-20
Models 2602A and 2612A noise shield
DUT
HILO
Noise Shield
CHANNEL A
LO GLO HI G G G HI
SS
KEITHLEY Series 2600A
Noise shield
connected to
In/Out LO
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