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Operation
4
HANDLING THE AMPLIFIER
The DA18000 Differential Amplifier is a precision test instrument; exercise care when han-
dling and storing the amplifier. Always handle the amplifier by the body. Avoid putting exces-
sive strain on the attached cables or exposing the cables to sharp bends.
ESD Sensitive: The inputs of the DA18000 amplifier are sensitive to
Electrostatic Discharge (ESD). To avoid causing damage to the ampli-
fier, always follow anti-static procedures (wear wrist strap, etc.) when
connecting cables to the input.
2.92 MM CONNECTORS
The 2.92 mm connector of the DA18000 amplifier is a precision coaxial connector that oper-
ates up to 40 GHz. It is compatible with SMA, WSMA and 3.5 mm connectors.
To avoid misalignment of the male pin to the female contact, the male pin of the 2.92 mm
connector is made shorter than the SMA or 3.5 mm connector pins. This way the outer hous-
ing is properly aligned prior to mating of the center conductors. Because of the new design,
the insertion force has been reduced from about 27 N in SMA and 3.5 mm connectors to
about 2.3 N with the 2.92 mm design. 2.92 mm connectors can be tightened to the same
torque specification as is used for type SMA, without damage.
When connecting SMA or 3.5 mm connectors, always align the male and female
parts before insertion to prevent damage to the female center connector.
2.92 mm connectors use air for the dielectric, as opposed to PTFE resin in type SMA. For-
eign material such as excessive dust can enter the dielectric pocket and degrade the high
frequency performance. Should this occur, remove the foreign material, using a jet of com-
pressed air or gas. Disposable cans of compressed gas for dusting purposes are readily
available from photo or electronic equipment suppliers.
Never insert an object into the connector in attempting to clean it. The
center contact can be easily bent out of position, destroying the
connector.
CAUTION
COMPATIBILITY
The DA18000 Differential Amplifier is designed to be used exclusively with the SDA 18000
Serial data Analyzer. However it includes frequency compensation data compatible with
lower BW WaveMaster, SDA, and DDA 5005 oscilloscopes.
CONNECTING THE AMPLIFIER TO A LECROY SERIAL DATA
ANALYZER
The DA18000 amplifier has been designed for exclusive use with the SDA 18000 Serial
Data Analyzer.
For optimum performance and full bandwidth always connect the amplifier only to channel 1
of the SDA 18000 analyzer.
DA18000-OM-E Rev A
Note
Operation
4-1
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