S-4: Difference between revisions

From TekWiki
Jump to navigation Jump to search
m (link)
(better pic)
Line 2: Line 2:
title=Tektronix S-4 |
title=Tektronix S-4 |
summary=Sampling Head |
summary=Sampling Head |
image=s4-crop.jpg |
image=Tek-s-4.jpg |
caption=S-4 head |
caption=S-4 head |
series=[[3S2]], [[7S11]], [[7S12]] Sampling Plugins |
series=[[3S2]], [[7S11]], [[7S12]] Sampling Plugins |
Line 34: Line 34:
==Pictures==
==Pictures==
<gallery>
<gallery>
Image:Tek s4.jpg
File:Tek-s-4.jpg
Image:S4_top.jpg|Top view of the S4 plug-in
File:Tek s4.jpg
Image:S4_left.jpg|Left view
File:S4_top.jpg|Top view of the S4 plug-in
Image:S4_right.jpg|Right view
File:S4_left.jpg|Left view
Image:S4 schem.png|Schematic
File:S4_right.jpg|Right view
File:S4 schem.png|Schematic
</gallery>
</gallery>




[[Category:7000 and 3S series sampling heads]]
[[Category:7000 and 3S series sampling heads]]

Revision as of 14:40, 14 September 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 (observed with S-50 or S-52, 35 ps)
Bandwidth 14.5 GHz
Input impedance 50 Ω (terminated SMA port)
Input range operating, 1 Vp-p; max. safe overload, ±5 V
Noise < 5 mV
Features
  • trigger signal pick-off for internal triggering

Links

Pictures