S-3: Difference between revisions

Revision as of 07:16, 18 May 2014

{{{manufacturer}}} {{{type}}}
Sampling Head S-3A head Compatible with [[7000/S3 series Sampling Plugins]] Produced from {{{introduced}}} to {{{discontinued}}} Manuals Tektronix S-3 Manual (DjVu) Tektronix S-3 Manual (PDF) (All manuals in PDF format unless noted otherwise) [[Category:Introduced in {{{introduced}}}]]

Manuals – Specifications – Links – Pictures

The S-3 sampling head is a plug-in head for use with the 7000 series sampling plug-ins or with the Type 3S2, 3S5, or 3S6 samplers. The plug-in includes a permanently attached 1× probe with the sampling bridge enclosed in the probe. Optional 10× or 100× attenuator tips are available.

Specifications

Input rise time:
- 1×: < 350 ps
- 10×: < 400 ps
- 100×: < 500 ps
Input impedance:
- 1×: 100 kΩ || 2.3 pF at low frequency
- 10×: 1 MΩ || 2 pF
- 100×: 1 MΩ || 1.7 pF
Maximum signal voltage: 2 V_p-p
The S-3 does not provide a trigger pickoff for internal triggering.
An offset voltage of either +/- 1 V or +/- 2 V can be selected via a toggle switch on the front panel.

Differences between S-3 and S-3A

The S-3A sampling head has a 10× improvement in baseline shift due to cable flexing. All other specifications are identical to the ordinary S-3. The major differences in design involves the gate board in the box part of the probe, but some changes are also made to the circuits in the body of the probe.

Difference between the S-3 and the P6038

The S-3 probe contains a compensated attenuator before the sampling bridge. The P6038 does not. The S-3 probe has a JFET buffer between the holding cap and the probe cable. The P6038 does not. Both use the 152-0368-00 sampling bridge.

Repair of Sampling Diodes

Individuals have reported success in replacing the S-3 sampling diodes with Agilent matched pair Schottky diodes.

Pictures

S-3A attenuator
Front
S-3A probe
S-3A probe internal
S-3A probe internal
S-3A strobe board
S-3A probe both sides
S-3 probe sampling bridge
S-3 probe sampling bridge

@@ Line 1: / Line 1: @@
+{{Plugin Sidebar |
+title=Tektronix S-3 |
+summary=Sampling Head |
+image=S3a box front.jpg |
+caption=S-3A head |
+series=[[:Category:Sampling plugins|7000/S3 series Sampling Plugins]] |
+years=? – ? |
+manuals=
+* [http://bama.edebris.com/download/tek/s3/s3.djvu Tektronix S-3 Manual (DjVu)]
+* [http://w140.com/tek_s-3.pdf Tektronix S-3 Manual (PDF)]
+}}
 The S-3 sampling head is a plug-in head for use with the
 series sampling plug-ins or with the Type [[3S2]], [[3S5]], or [[3S6]] samplers.
-The plug-in includes a permanently attached 1x probe with the sampling bridge enclosed in the probe.
+The plug-in includes a permanently attached 1× probe with the sampling bridge enclosed in the probe.  Optional 10× or 100× attenuator tips are available.
-The input rise time is specified as less than 350 ps for the 1× probe, less than 400 ps with the optional 10× attenuator tip, and less than 500 ps with the 100× attenuator tip.
+==Specifications==
-The maximum operating signal voltage is 2 V<sub>p-p</sub>.
-The S-3 does not provide a trigger pickoff for internal triggering.
-An offset voltage of either +/- 1 V or +/- 2 V can be selected via a toggle switch on the front panel.
-== Input Characteristics ==
+* Input rise time:
-The probe tip input is equivalent to 100 kΩ resistor in parallel with about 2.3 pF capacitance at low frequency.
+** 1×: < 350 ps
-With the 10× or 100× attenuator tips, the probe input is equivalent to 1 MΩ paralleled with 2 pF or 1.7 pF, respectively.
+** 10×: < 400 ps
+** 100×: < 500 ps
+* Input impedance:
+** 1×: 100 kΩ || 2.3 pF at low frequency
+** 10×: 1 MΩ || 2 pF
+** 100×: 1 MΩ || 1.7 pF
+* Maximum signal voltage: 2 V<sub>p-p</sub>
+* The S-3 does not provide a trigger pickoff for internal triggering.
+* An offset voltage of either +/- 1 V or +/- 2 V can be selected via a toggle switch on the front panel.
 == Differences between S-3 and S-3A ==
@@ Line 22: / Line 38: @@
 == Repair of Sampling Diodes ==
 Individuals have reported success in replacing the S-3 sampling diodes with Agilent matched pair Schottky diodes.
-* [http://bama.edebris.com/download/tek/s3/s3.djvu Tektronix S-3 Manual (DjVu)]
-* [http://w140.com/tek_s-3.pdf Tektronix S-3 Manual (PDF)]
 ==Pictures==
 <gallery>
 Image:S3_frontend.png
-File:S3a attenuator.jpg|S-3A|S-3A attenuator
+File:S3a attenuator.jpg|S-3A attenuator
-File:S3a box front.jpg
+File:S3a box front.jpg|Front
 File:S3a probe external1.jpg|S-3A probe
 File:S3a probe internal1.jpg|S-3A probe internal
@@ Line 41: / Line 54: @@
 [[Category:7000 and 3S series sampling heads]]
+__NOTOC__