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Sampler: Difference between revisions
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== One-Diode Sampler== | == One-Diode Sampler== | ||
This is used in the [[N|Type N]]. | This is used in the [[N|Type N]]. A single diode provides no symmetry and so the strobe pulse leakage (kick-out) is large. | ||
<gallery> | <gallery> | ||
Tek n sampler.png|Tek [[N|Type N]] sampler. The "interrogate diode" is the [[sampling diode]]. | Tek n sampler.png|Tek [[N|Type N]] sampler. The "interrogate diode" is the [[sampling diode]]. | ||
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== Six-Diode Sampler== | == Six-Diode Sampler== | ||
This is used in the [[S-4]], [[S-6]], [[SD-24]] and [[SD-24]]. | This is used in the [[S-4]], [[S-6]], [[SD-24]] and [[SD-24]]. | ||
It is often called a traveling-wave sampler. | It is often called a traveling-wave sampler. The effective sampling duration is shorter than the width of the strobe pulse and for fast diodes only depends on the trailing edge of the strobe pulse and the delay of the transmission line between the diodes. For the [[S-4]] and [[S-6]] sampling gates the internal sampling diodes are reverse biased at a higher voltage, while the outer four diodes are reverse biased at about 0.6 V. The sampling signal is the charge trapped between the outer four diodes by the trailing edge of the strobe pulse. | ||
<gallery> | <gallery> | ||
Tek s4 sampler.png | Tek s4 sampler.png | ||