Datasheet

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28

6. Pulse Generator Unit

The two-channel, voltage-only pulse generator is an economical alternative to the 4225-PMU Ultra-fast Pulse Measure Unit if pulse

measurement

is not needed.

4220-PGU General Information

Output connectors

Four SMA (f)

Supplied cables

SMA (m) to SMA (m), 2 m, 4 each (CA-404B)

SMA (m) to SSMC 4-cable, 15 cm (6 in.), 2 each (4200-PRB-C)

10V Range

40V Range

V

OUT

50 Ω into 1 MΩ

–10 V to +10 V

–40 V to +40 V

50 Ω into 50 Ω

–5 V to +5 V

–20 V to +20 V

Accuracy

—

±(0.5% + 10 mV)

±(0.2% + 20 mV)

Resolution

50 Ω into 50 Ω

<250 µV

<750 µV

50 Ω into 1 MΩ

<0.5 mV

<1.5 mV

50 Ω into 50 Ω

±(3% + 20 mV)

±(3% + 80 mV)

50 Ω into 50 Ω, typical best case

±(2% + 20 mV)

±(0.8% + 40 mV)

Baseline noise

—

±(0.3% + 1 mV) RMS typical

±(0.1% + 5 mV) RMS typical

Source impedance

—

50 Ω nominal

50 Ω nominal

Current into 50 Ω load

(at full scale)

—

±100 mA typical

±400 mA typical

Short circuit current

—

±200 mA

±800 mA

Output limit

—

Programmable limit to protect the device under test

Notes

1. Unless stated otherwise, all specifications assume a 50 Ω termination.

2. Level specifications are valid after 50 ns typical settling time (after slewing) for the 10 V source range and after 500 ns typical settling time (after slewing) for the 40 V source range into a 50 Ω load.

3. With transition time of 20 ns (0%–100%) for the 10 V source range and 100 ns (0%–100%) for the 40 V source range.

Pulse Timing

10 V Range

Source Only

40 V Range

Source Only

Frequency range

1 Hz to 50 MHz

1 Hz to 10 MHz

Timing resolution

10 ns

10 ns

RMS jitter (period, width), typical

0.01% + 200 ps

0.01% + 200 ps

Period range

20 ns to 1 s

100 ns to 1s

Accuracy

±1%

±1%

Pulse width range

10 ns to (Period–10 ns)

50 ns to (Period–10 ns)

Accuracy

±(1% + 200 ps)

±(1% + 5 ns)

Programmable transition time

(0%–100%)

10 ns to 33 ms

Transition slew rate accuracy

±1%

(transitions > 100 ns)

±1%

(transitions > 1 µs)

Solid state relay open/close time

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.