Showing Results for Tektronix SD22

The SD22 is a dual-channel, 12.5 GHz sampling head specifically designed for low-noise measurement in digital communications and device characterization applications. It provides an acquisition rise time of 28 ps, and typically 450 µVRMS of displayed noise. With smoothing, noise levels are 180 µVRMS.

In order to precisely capture and display the switching characteristics of high-speed communications circuits, to make accurate statistical measurements of signal noise and signal timing jitter, or to obtain stable timing measurements of fast digital ICs, the noise floor of the test equipment must be kept to a minimum. The SD22 is the ideal instrument for these low-noise applications.

• 12.5 GHz Bandwidth
• Low-noise
• Dual-channel
• Sample repetition rate
  • Maximum: 200 kHz
  • Minimum: 100 Hz
• Rise Time: 28 ps, from 10% to 90%
• Dynamic Range - 1 Vp-p within a ±1.6 V range
• Aberrations
  • 10 ns to 20 ps before step: ±3% or less, typical
  • <300 ps after step: +10%, -5% or less, typical
  • 300 ps to 5 ns after step: ±3% or less, typical
  • 5 ns to 100 ns: ±1% or less, typical
  • elsewhere: ±0.5% or less, typical
• 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: 50 Ohm ±0.5 Ohm
• Displayed Noise
  • Maximum, typical, with unity dot response: 800 µV, 400 µV
  • Maximum, typical, with smoothing: 400 µV, 180 µV
• Maximum Safe Input Voltage: ±3 V
• Maximum Operating Input: 1.6 Vp-p
• Maximum Signal Voltage: 1.0 Vp-p