Datasheet

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26

PMU Pulse Timing

10 V Range

Source Only

10 V Range

with Measure

40 V Range

Source Only

40 V Range

with Measure

Frequency range

1 Hz to 50 MHz

1 Hz to 8.3 MHz

1 Hz to 10 MHz

1 Hz to 3.5 MHz

Timing resolution

10 ns

10 ns

10 ns

10 ns

RMS jitter (period, width), typical

0.01% + 200 ps

0.01% + 200 ps

0.01% + 200 ps

0.01% + 200 ps

Period range

20 ns to 1 s

120 ns to 1 s

100 ns to 1s

280 ns to 1s

Accuracy

±1%

±1%

±1%

±1%

Pulse width range

10 ns to (Period–10 ns)

60 ns to (Period–10 ns)

50 ns to (Period–10 ns)

140 ns to (Period–10 ns)

Accuracy

±(1% + 200 ps)

±(1% + 200 ps)

±(1% + 5 ns)

±(1% + 5 ns)

Programmable transition time

(0%–100%)

10 ns to 33 ms

20 ns to 33 ms

100 ns to 33 ms

Transition slew rate accuracy

±1%

(transitions > 100 ns)

±1%

(transitions > 100 ns)

±1%

(transitions > 1 µs)

±1%

(transitions > 100 ns)

Solid state relay open/close time

25 µs

25 µs

25 µs

25 µs

Notes

1. 40 V range minimum programmable transition time (source only) is 30 ns for voltage <10 V and 100 ns for voltages >10 V.

Voltage Source, Best Performance

When the 4225-PMU is used as a voltage source only (no measurements of voltage or current), the timing performance is improved. The following

is provided to offer a clearer idea of best performance when used as a voltage source, as achievable under optimal conditions. This should not be

interpreted as a guarantee.

10V Range

40V Range

Rise time

<10 ns

50 ns to 10 V, 100 ns to 40 V

Pulse width

10 ns (FWHM)

50 ns (FWHM)

Period

20 ns

100 ns

Overshoot/preshoot/ringing

±(2% + 20 mV)

±(0.5% + 40 V)