The AVRZ-5 family provides high amplitude outputs (to +500V) with very fast rise times (< 10 ns), very fast fall times (5 or 10 ns), and a pulse width that is variable over a wide range (15 ns to 10 us, or 100 ns to 10 us).
The AVRZ-5A-B has a pulse width range of 100 ns to 10 us, with a maximum duty cycle of 0.1%. The maximum pulse repetition frequency is 5 kHz. The rise time is ≤ 5 ns for a 100V pulse, ≤ 7.5 ns for a 300V pulse, and ≤ 10 ns for a 500V pulse. The fall time is ≤ 10 ns.
The AVRZ-5W-B is similar, but it operates at narrower pulse widths (as low as 15 ns) and offers faster fall times of 5 ns. The faster circuitry introduces a small repetitive decaying “back-porch” transient, which is not present in the AVRZ-5A-B model.
These models require a 50Ω load. They will not operate correctly into higher or lower impedances.
Both instruments may be triggered by the internal trigger source (variable from 1 Hz to 5 kHz), by an external TTL trigger source, by a front-panel pushbutton, or by a computer command. Both models include a complete computer control interface. This provides GPIB and RS-232 computer-control, as well as front panel keypad and adjust knob control of the output pulse parameters. A large back-lit LCD displays the output amplitude, frequency, pulse width, and delay.
The standard models generate positive output amplitudes only. However, an accessory inverting transformer is available as an option for generating negative outputs.