The Tektronix S-6 Sampling Head plug-in is a 50 Ω feed-through unit with a rise-time of 30 ps and bandwidth of 11.5 GHz. It was introduced in 1971. The S-6 provides two unterminated 50 Ω SMA connections in a loop-through configuration as is convenient for TDR applications.
It is good practice to leave a termination resistor on the unit when unused to give some protection against electrostatic discharge.
|Rise time||30 ps|
|Input impedance||50 Ω (unterminated!)|
|Noise||< 5 mV of noise|
- S-6 internal photo and simulation
- Repairing an S-6 head (with internal photos)
- S-6 @ amplifier.cd 7S12 page
- S-6 @ barrytech.com
Incident pulse from an S-52 (nom. < 25 ps) displayed by an S-6 head (nom. < 30 ps), both installed in a 7S12. Displayed rise time ~35 ps confirms spec.