SRS Stanford DG535 Digital Delay Generator

Product Introduction:
Stanford Digital Delay Generator DG535

American SRS/DG535 4-Channel Digital Delay/Pulse Generator
Detailed Description

Specifications
Time Delay
Four independent delay output channels
Range 0 to 999.999,999,999,995 seconds
Resolution 5 PS
Accuracy 1500 PS + timebase error × delay
Timebase Standard: 25ppm crystal oscillator
Optional: 1ppm TCXO (Option 03)
External: 10.0 MHz reference input
RMS jitter <100 PS + (10?? × delay)
Trigger delay (typical) 85 ns (external trigger to T0 output)

External Trigger

Rate DC to 1/(1 + μs long delay)
Threshold ±2.56 VDC
Resolution 10 mV
Trigger on rising or falling edge slope
Impedance 1MΩ + 40 pF or 50Ω

Internal Rate Generator

Rate Single shot, 0.001 Hz to 1.000 MHz, or line
Resolution Four digits, 0.001 Hz below 10Hz
Accuracy Same as timebase
Jitter 1:10,000
Settling <2 seconds for any rate change
Burst mode 2–32766 pulses per burst at integer multiples of trigger period (4 to 32767)

Output

Load 50Ω or high impedance
Rise time 2–3 ns (typical)
Slew rate 1V/ns
Overshoot <100 mV + 10% of pulse amplitude
Level TTL: 0 to 4 VDC (normal or inverted)
ECL: -1.8 to -0.8 VDC (normal or inverted)
NIM: -0.8 to 0.0 VDC (normal or inverted)
VAR: Adjustable offset and amplitude between -3 and +4 VDC with 10 mV resolution. 4V maximum swing.
Accuracy ±(50 mV + 3% of pulse amplitude)
Option 02 Rear panel outputs correspond to T0, A, B, C, D outputs with 8 nominal amplitude × 1kHz repetition rate front panel output 1 μs pulses. Output level reduced by 2 mV per mA of additional average output current.

Fast Rise Time (Option O4A)

Output amplitude 0.5–2.0 VDC
Output offset -0.8 V (typical)
Transition time
Rise (20/80%)
Fall (20/80%)

100ps (typ.)
2000ps (typ.)

Pulse aberration