S-4: Difference between revisions

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{{Plugin Sidebar |
{{Plugin Sidebar 2 |
title=Tektronix S-4 |
title=Tektronix S-4 |
summary=Sampling Head |
summary=Sampling Head |
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caption=S-4 head |
caption=S-4 head |
series=[[3S2]], [[7S11]], [[7S12]] Sampling Plugins |
series=[[3S2]], [[7S11]], [[7S12]] Sampling Plugins |
years=1968 – ? |
introduced=1968 |
discontinued=(?) |
manuals=
manuals=
* [http://w140.com/tek_s4.pdf Tektronix S-4 Manual, copyright 1969 (PDF)]
* [http://w140.com/tek_s4.pdf Tektronix S-4 Manual, copyright 1969 (PDF)]

Revision as of 08:48, 20 August 2014

Template:Plugin Sidebar 2 The Tektronix S-4 is a sampling head for 7000- and 3S-series samplers. It was designed by George Frye and introduced in 1968. It is the fastest of the S-series plug-in samplers. (An interesting comparison of different sampling heads is found in "AN-3042a, Revision 1, 2/89".)

The S-4 sampling gate is based upon a traveling wave trapped-charge transmission line in which the sampling window is set by the propagation time of a pulse edge through a thick-film transmission line. This technique requires only a sharp pulse edge rather than a precise pulse width, which is harder to generate. The sampling diodes are housed in a special coaxial connector that provides a high bandwidth signal path.

Specifications

Key Specifications

Rise time 25 ps
Bandwidth 14.5 GHz
Input impedance 50 Ω (terminated SMA port)
Noise < 5 mV
Features
  • trigger signal pick-off for internal triggering

Links

Pictures