3S76: Difference between revisions
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(per '62 catalog) |
(headline) |
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The inputs have 50 Ω impedance and use [[Connectors#GR-874|GR-874]] connectors. Rise time is rated at less than 0.4 ns. | The inputs have 50 Ω impedance and use [[Connectors#GR-874|GR-874]] connectors. Rise time is rated at less than 0.4 ns. | ||
{{BeginSpecs}} | |||
{{Spec | Rise time | < 400 ps }} | |||
{{Spec | Bandwidth | 875 MHz }} | |||
{{Spec | Input impedance | 50 Ω }} | |||
{{Spec | Triggering | Internal trigger take-off, 55 ns delay line }} | |||
{{EndSpecs}} | |||
==Internals== | |||
Each input has a trigger takeoff transformer and a 55 ns coaxial [[delay line]]. | Each input has a trigger takeoff transformer and a 55 ns coaxial [[delay line]]. | ||
The trigger source channel is selectable. | The trigger source channel is selectable. | ||
| Line 25: | Line 33: | ||
The sampling pulse, common to both channels, is generated by a [[snap-off diode]] | The sampling pulse, common to both channels, is generated by a [[snap-off diode]] | ||
and a 3 cm twisted-pair clipping line. | and a 3 cm twisted-pair clipping line. | ||
==Pictures== | ==Pictures== | ||
Revision as of 05:51, 24 October 2014
The Tektronix 3S76 is a dual-trace sampling plug-in for 560-series scopes. The inputs have 50 Ω impedance and use GR-874 connectors. Rise time is rated at less than 0.4 ns.
Key Specifications
| Rise time | < 400 ps |
|---|---|
| Bandwidth | 875 MHz |
| Input impedance | 50 Ω |
| Triggering | Internal trigger take-off, 55 ns delay line |
Internals
Each input has a trigger takeoff transformer and a 55 ns coaxial delay line. The trigger source channel is selectable.
Each delay line terminates at that channel's sampling bridge, which is a four-diode design using beam-lead GaAs diodes.
A 7586 nuvistor buffers the output of each sampling bridge. The sampling pulse, common to both channels, is generated by a snap-off diode and a 3 cm twisted-pair clipping line.
Pictures
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front
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Sampler schematic
