Teledyne LeCroy WaveLink Differential Probe Series (8-13 GHz) - Manual (Page 16)

WaveLink Medium-Bandwidth (8-13 GHz) Differential Probe
Teledyne LeCroy's solder-in probe lead uses resistors at the tip that are precisely pre-cut to the
correct length. This design provides the following advantages:
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It locates the damping resistance of the probe tip as close to the DUT as possible.
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It eliminates the need for long lengths of wire between the DUT and the damping resistor,
which impacts loading and frequency response. The resistors may still be spaced as desired
to connect to a wide variety of circuits.
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It eliminates the need to precision cut and solder small lengths of wire to the end of the
solder-in lead, and then solder these wires to the DUT.
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The damping resistors are easily replaced in the field to provide maximum serviceability and
life of the solder-in probe lead.
Square Pin Lead
The square pin interconnect lead assembly can be used on boards where standard 0.025” square
pins are used for interconnect. The highly flexible, 145 mm (5.7”) long square pin interconnect lead
connects directly with a pair of square pins mounted on standard 0.100” (2.54 mm) centers.
Because of the parasitic inductance of the square pin to which the probe is connected, the system
will not support maximum bandwidth or the minimum risetime when used with an oscilloscope with
bandwidth greater than 3 GHz. The added inductance of the square pins limits the measurements to
signals of 3 GHz bandwidth. A low-cost alternative is to provide vias in the circuit to be tested, and to
insert the flexible tips of the very low-loading adjustable tip module into these vias.
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