S-1: Difference between revisions

From TekWiki
Jump to navigation Jump to search
No edit summary
No edit summary
(8 intermediate revisions by 2 users not shown)
Line 4: Line 4:
image=S1-crop.jpg |
image=S1-crop.jpg |
caption=S-1 head |
caption=S-1 head |
introduced=(?) |
introduced=1967 |
discontinued=1989 |
discontinued=1989 |
series={{3S+7S}} |
series={{3S+7S}} |
Line 12: Line 12:
}}
}}


The S-1 [[sampling_oscilloscope|sampling]] plug-in head provides a single [[GR-874]] 50 Ω input with a 350 ps rise-time.  
The '''S-1 sampling plug-in head''' provides a single [[GR-874]] 50 Ω input with a 350 ps rise-time.  


The S-1 can be used with the 7000 series of sampling plug-ins, as well as the 3S series of sampling units.
The S-1 can be used with the 7000 series of [[sampling_oscilloscope|sampling]] plug-ins, as well as the 3S series of sampling units.
 
A trigger pickoff is provided for internal triggering, and displayed noise is specified as less than 2 mV.
The S-1 accepts an input voltage range of -1V to +1V with less than 1 V<sub>p-p</sub> input signal amplitude.


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Rise time | 350 ps }}
{{Spec | Rise time | 350 ps }}
{{Spec | Bandwidth | 1 GHz }}
{{Spec | Bandwidth | 1 GHz }}
{{Spec | Input amplitude | −1 V to +1 V  with ≤1 V<sub>p-p</sub> signals }}
{{Spec | Maximum input  | ±5 V<sub>DC</sub> or sine of 10 V<sub>p-p</sub> up to 10 MHz }}
{{Spec | Input impedance | 50 Ω  ([[GR-874]]) }}
{{Spec | Input impedance | 50 Ω  ([[GR-874]]) }}
{{Spec | Noise  | < 2 mV }}
{{Spec | Noise  | < 2 mV }}
{{Spec | Features | trigger pickoff for internal triggering }}
{{EndSpecs}}
{{EndSpecs}}


==Links==
==Links==
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/S-1.html S-1 page @ amplifier.cd]
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_special/S-1.html S-1 page @ amplifier.cd]
==Internals==
The S-1 uses a two-diode sampling gate which has relatively high "kick-out" (leakage of the strobe signal out of the input). 
The manual cautions,
<blockquote>
Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial
cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the
strobe kickout signal being reflected from the open input connector, and arriving back at the sampling
bridge while the bridge is conducting.
</blockquote>
The sampling bridge strobe signal is generated by an [[avalanche transistor]] followed by a [[step recovery diode]].


==Pictures==
==Pictures==


<gallery>
<gallery>
File:Tek s-1.jpg
Tek s-1.jpg
File:Tek s1 internal strobe.jpg | Strobe board
Tek s1 internal strobe.jpg | Strobe board
File:Tek s1 internal pre.jpg  | Preamp board
Tek s1 internal pre.jpg  | Preamp board
File:Tek s1 front.jpg | S-1 front
Tek s1 front.jpg | S-1 front
File:S1 diode.jpg  | Diode mount in S-1
S1 diode.jpg  | Diode mount in S-1
File:S1 diode2.jpg  | Diode mount in S-1
S1 diode2.jpg  | Diode mount in S-1
File:S1 diode3.jpg  | Diode mount in S-1
S1 diode3.jpg  | Diode mount in S-1
File:S-52_s-1_rt_brighter.jpg | S-1 in a [[3S2]] sampler / [[567]] scope
S-52_s-1_rt_brighter.jpg | S-1 in a [[3S2]] sampler / [[567]] scope
Tek s1 sampler schematic.png|Tektronix S-1 sampler
Tek 7s11 s-1.jpg|[[7S11]] with S-1
</gallery>
</gallery>




[[Category:7000 and 3S series sampling heads]]
[[Category:7000 and 3S series sampling heads]]
[[Category:GR874]]

Revision as of 22:57, 31 August 2019

Template:Plugin Sidebar 2

The S-1 sampling plug-in head provides a single GR-874 50 Ω input with a 350 ps rise-time.

The S-1 can be used with the 7000 series of sampling plug-ins, as well as the 3S series of sampling units.

Key Specifications

Rise time 350 ps
Bandwidth 1 GHz
Input amplitude −1 V to +1 V with ≤1 Vp-p signals
Maximum input ±5 VDC or sine of 10 Vp-p up to 10 MHz
Input impedance 50 Ω (GR-874)
Noise < 2 mV
Features trigger pickoff for internal triggering

Links

Internals

The S-1 uses a two-diode sampling gate which has relatively high "kick-out" (leakage of the strobe signal out of the input).

The manual cautions,

Operating the sampling head without the input connector terminated by a 50 Ω resistor or coaxial cable will cause a vertical shift of the zero signal baseline by a few millivolts. This is caused by the strobe kickout signal being reflected from the open input connector, and arriving back at the sampling bridge while the bridge is conducting.

The sampling bridge strobe signal is generated by an avalanche transistor followed by a step recovery diode.

Pictures