The Tektronix SD14 Sampling Head is designed for high-impedance signal acquisition where a 50 Ohm acquisition system is not the optimal solution.
Features:
Acquisition System: dual channel
Rise Time: 140 ps from 10% to 90%
Bandwidth: 3 GHz (typical)
Dynamic Range: 7 Vp-p within a ±3.5 V offset range
Dot Transient Response: Accuracy after calibration at operating temperature is
±5% for signals up to 0.5 Vp-p. Adjustable to unity for signals up to 1.0 Vp-p.
Input Impedance: 100 kilohm and 0.5 pF
Displayed Noise: Maximum Typical: With unity dot response: SD14 8 mV 7 mV
Aberrations (typical): <1.5 ns after step: +12%, -25%, 1.5 ns to 4 ns after step:
+1%, -3%, 4 ns to 30 ns after step: ±2%. Elsewhere: ±1%.
Maximum Input Voltage: ±15 V
Time Coincidence Between Channels - 10 ps accuracy; <0.2 ps/°C stability.