Stanford Research SR620 Time Interval Counter

Description:

The SR620 Time Interval Counter performs virtually all of the time and frequency measurements required in a laboratory or ATE environment. The instrument's single-shot timing resolution and low jitter make it the counter of choice for almost any application.

The SR620 measures time interval, frequency, pulse-width, rise and fall time, period, phase and events. Time intervals are measured with 25 ps rms resolution, making the SR620 one of the highest resolution counters available. Frequency is measured from 0.001 Hz to 1.3 GHz, and a choice of gates ranging from 1 period to 500 seconds is provided. The SR620 delivers up to 11 digits of frequency resolution in one second, making it suitable for measurement applications ranging from short-term phase locked loop jitter, to the long-term drift of atomic clocks. All measurement modes are supported by a wide variety of flexible arming and triggering options.

Features:

  • 25 ps single-shot time resolution
  • 1.3 GHz frequency range
  • 11-digit frequency resolution (1 s)
  • Statistical analysis & Allan variance
  • Graphical output to XY scopes
  • GPIB and RS-232 interfaces
  • Ovenized timebase (opt.)

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