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80E00 Electrical Sampling Modules User Manual
7
Know your signal source. If it is capable of delivering overvoltages, it is safer to
not depend on the signal source settings for protection, but instead use an
external attenuator that protects the input from the worst-case conditions. For
example, for a 20 V maximum source connected to a 3 V maximum sampling
module, use a 10X attenuator. Where possible, connect your cables to the signal
source first, and to the sampling module second.
CAUTION. To prevent damage from electrostatic dischar ge, install 50 Ω
terminations on the sampling-module connectors before removing a sampling
module from an instrument or when it is not in use. Store the sampling module in
a static-fr ee container, such as the shipping container. Whenever you move the
sampling module from one instrument to another, use a static-free container to
transport the sampling module.
To pr event damage to the sampling module, discharge to ground any electrostat-
ic charge that may be present on the center and outer conductors of cables
before attaching the cable to the sampling module.
To pr event damage to the sampling module, do not create an ESD antenna by
leaving cables attached to the sampling-module input with the other end of the
cable open.
To pr event damage to the sampling module or instrument, never install or
remove a sampling module when the instrument is powered-on.
Always use a wrist strap (provided with your instrument) when handling
sampling modules or making signal connections. Wear anti-static clothing and
work in a static-free workstation when using sampling modules.
Use a Tektronix 80A02 EOS/ESD Protection Module if doing TDR work.
To pr event damage to the sampling module or instrument, do not apply a voltage
outside the Maximum Input Voltage (see page 48) for your sampling module.
For information on creating a static-controlled workstation, consult the Electron-
ic Industries Association document EIA-625; Requirements for Handling
Electrostatic-Discharge-Sensitive (ESDS) Devices.
You can use a Tektronix 80A02 EOS/ESD Protection Module to protect the
sampling module from damage due to static discharge from circuit boards and
cables. Use the 80A02 in applications where large static charges can be stored on
the device under test, such as when testing TDR circuit boards or cables.
Refer to the documentation supplied with the 80A02 module for proper
installation and use.
Static Controlled
Workstation