Tektronix 80A09 Manuel utilisateur
80A09 26 GHz ESD Protection Device Instructions
The Tektronix 80A09 is a DC-coupled voltage limiter that protects sensitive
electrical sampling module inputs from damage due to electric overload stress
(EOS) and electrostatic discharge (ESD).Voltagesmorethan±2Vcandamage
the high-performance samplers (such as the 80E03 or 80E04) used in 8000 series
sampling oscilloscopes. The 80A09 dramatically reduces the likelihood that such
voltages will reach the sensitive high-bandwidth sampling diodes in the electrical
sampling module, ensuring that its performance is not degraded.
Best practices to prevent ESD
CAUTION. Electrostatic discharge (ESD) can damage the 80A09 and sampling
module electrical inputs and outputs. Observe the following guidelines to prevent
ESD when using the 80A09 or anytime that you are connecting signals or handling
the 80A09 or the 80E04 Electrical Sampling Module:
Always wear a grounded antistatic wrist strap when handling or connecting
the 80A09 to the 80E04 module, when connecting cables to the 80A09, or
when handling or installing sampling modules in the mainframe instrument.
Wear anti-static clothing and work in a static-free are when using sampling
modules.
Safely discharge the center lead of all cables to ground before connecting
them to the 80A09, sampling modules, or the oscilloscope mainframe.
Do not create an ESD antenna by leaving cables attached to the 80A09 or a
sampling module input with the other end of the cable open.
Always store and transport the 80A09 and sampling modules in a static-free
container, with all supplied terminations installed.
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80A09 26 GHz ESD Protection Device Instructions
Install the 80A09
You insert the 80A09 devices between the 80E04 TDR sampling module inputs
and the cables to the device under test, with the 80A09 connected directly to
the 80E04.
CAUTION. Follow ESD handling guidlelines when connecting the 80A09 to the
module and when connecting cables to the 80A09. (See page 1, Best practices
to prevent ESD.)
1. Connect the 80A09 to the 80E04 module. Use a torque wrench to tighten the
connector to 7.5 in-lb.
2. Connect the cable from the DUT to the 80A09. Make sure to discharge the
cable center and shield to ground before connecting to the 80A09. Use a
torque wrench to tighten the connector to 7.5 in-lb.
CAUTION. To prevent damaging the 80A09/80E04 module connectors, do not
put excess pull or lateral movement on the cable attached to the 80A09/80E04
assembly.
Verify that 80A09 is functional
Use the following procedure to verify that the 80A09 is fully functional to protect
the sampling module from ESD (do these steps before major testing sessions, or
as part of a scheduled maintenance routine):
Required test equipment Source Measure Unit (SMU).
Adapter, K to BNC.
280A09 Instructions
80A09 26 GHz ESD Protection Device Instructions
BNC T connector.
Two BNC cables (example: Tektronix part number 012-0076-xx, 20 inch
BNC cable).
Two BNC to Banana plug adapters.
Precautionswhile
performing the test
This test checks the 80A09 leakage and clamping thresholds. Use caution when
operating the Source Measure Unit (SMU) in this test setup. Even though the
80A09 protects the 80E04 from reasonable overvoltages, use care to avoid
damaging the 80A09. Follow these precautions:
Always disconnect the 80A09 from the sampling module input for this test.
Always set SMU test limits as specified.
Always disable the SMU output before connecting or disconnecting the SMU
supply from the test setup.
Set the SMU at zero volts before enabling the output.
Procedure
CAUTION. Follow ESD handling guidlelines when connecting cables to the
80A09. (See page 1, Best practices to prevent ESD.)
1. If connected, remove the cable from the 80A09.
2. Remove the 80A09 from the 80E04 module input.
CAUTION. Do not perform this test with the 80A09 connected to the 80E04. Doing
so can damage the 80E04 module input.
Do not connect a ground or 50 Ωterminator to the 80A09.
3.Configure the SMU before connecting to the 80A09:
Set the SMU at zero volts.
Disable the SMU supply output.
4. Connect the adapters and cables as shown in the following diagram.
80A09 Instructions 3
80A09 26 GHz ESD Protection Device Instructions
NOTE. Make sure to connect the ground (GND ) side of each BNC to Banana plug
adapter to the LO connectors of the SMU.
5. Use the following guidelines while using the SMU with the 80A09:
Do not exceed the test voltage value.
Once tested, reduce the voltage to zero volts before changing SMU
settings.
Do not disconnect or reconnect any test cables until you reduce the output
to zero.
6. Set the SMU to output +2.0 VDC. Verify that the measured current is less
than +100 μA.
7. Set the SMU to output –2.0 VDC. Verify that the measured current is less
than –100 μA.
8. Set the SMU to source +65 mA, with the overvoltage limit set to +3.5 V.
Verify that the measured voltage is ≤3.42 VDC.
9. SettheSMUtosink–65 mA, with the overvoltage limit set to –3.5 V.Verify
that the measured voltage is ≥–3.42 VDC.
10. Set the SMU output to zero volts, disable the SMU output, and disconnect the
SMA to BNC adapter from the 80A09.
CAUTION. If any of the checks are outside the stated limits, the 80A09 device
can no longer provide ESD protection. Do not use a defective 80A09 with an
80E04. Contact Tektronix Customer Support to order a replacement 80A09 ESD
Protection Device.
11. Repeat all of these steps to test other 80A09 devices.
480A09 Instructions
80A09 26 GHz ESD Protection Device Instructions
Environmental Compliance
Product end-of-life
handling
Observe the following guidelines when recycling an instrument or component:
Equipment recycling. Production of this equipment required the extraction and
use of natural resources. The equipment may contain substances that could be
harmful to the environment or human health if improperly handled at the product’s
end of life. To avoid release of such substances into the environment and to
reduce the use of natural resources, we encourage you to recycle this product in
an appropriate system that will ensure that most of the materials are reused or
recycled appropriately.
This symbol indicates that this product complies with the applicable European
Union requirements according to Directives 2002/96/EC and 2006/66/EC
on waste electrical and electronic equipment (WEEE) and batteries. For
information about recycling options, check the Support/Service section of the
Tektronix Web site (www.tektronix.com).
Restriction of hazardous
substances
This product is classified as an industrial monitoring and control instrument
accessory, and is not required to comply with the substance restrictions of the
recast RoHS Directive 2011/65/EU until July 22, 2017.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to find contacts in your area.
80A09 Instructions 5
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