Tektronix 80E08

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The TEK-80E08 is a dual-channel Time Domain Reflectometry (TDR) sampling module, providing up to 18 ps incident and 20 ps reflected rise time.
Each channel is capable of generating a fast step for use in TDR mode and the acquisition portion of the sampling module monitors the incident step
and any reflected energy. The polarity of each channel's step can be selected independently.
This allows for differential or common-mode TDR or S-parameters testing of two coupled lines,
in addition to the independent testing of isolated lines.
The independent step generation for each channel allows true differential measurements, which ensures measurement accuracy for differential devices.

The module is small form-factor, fully integrated independent 2 meter remote sampler systems,
enabling location of the sampler near the DUT and ensuring the best signal fidelity.
The module characterize crosstalk by using TDR steps to drive one line (or line pair for differential crosstalk) while monitoring a second line (or line pair)
with the other channel (or another module for differential crosstalk).
The "filter" function on the 8200 and 8000 series mainframes can be used with TDR or
crosstalk measurements to characterize expected system performance with slower edge rates.

The module has independent incident step and receiver deskew to remove the effect of measurement fixtures and probes,
that enable faster and easier de-embedding of test fixtures.
The TEK-80E08 sampling module provides an acquisition rise time of 11.7 ps, with up to 30 GHz bandwidth (user-selectable with 30 and 20 GHz settings).